{
  "type": "File",
  "start": 0,
  "end": 1205,
  "loc": {
    "start": {
      "line": 1,
      "column": 0
    },
    "end": {
      "line": 77,
      "column": 0
    }
  },
  "program": {
    "type": "Program",
    "start": 0,
    "end": 1205,
    "loc": {
      "start": {
        "line": 1,
        "column": 0
      },
      "end": {
        "line": 77,
        "column": 0
      }
    },
    "sourceType": "module",
    "body": [
      {
        "type": "ExportDefaultDeclaration",
        "start": 0,
        "end": 1204,
        "loc": {
          "start": {
            "line": 1,
            "column": 0
          },
          "end": {
            "line": 76,
            "column": 1
          }
        },
        "declaration": {
          "type": "ClassDeclaration",
          "start": 15,
          "end": 1204,
          "loc": {
            "start": {
              "line": 1,
              "column": 15
            },
            "end": {
              "line": 76,
              "column": 1
            }
          },
          "id": {
            "type": "Identifier",
            "start": 21,
            "end": 24,
            "loc": {
              "start": {
                "line": 1,
                "column": 21
              },
              "end": {
                "line": 1,
                "column": 24
              },
              "identifierName": "Set"
            },
            "name": "Set"
          },
          "superClass": null,
          "body": {
            "type": "ClassBody",
            "start": 25,
            "end": 1204,
            "loc": {
              "start": {
                "line": 1,
                "column": 25
              },
              "end": {
                "line": 76,
                "column": 1
              }
            },
            "body": [
              {
                "type": "ClassMethod",
                "start": 31,
                "end": 125,
                "loc": {
                  "start": {
                    "line": 2,
                    "column": 4
                  },
                  "end": {
                    "line": 6,
                    "column": 5
                  }
                },
                "static": false,
                "computed": false,
                "key": {
                  "type": "Identifier",
                  "start": 31,
                  "end": 42,
                  "loc": {
                    "start": {
                      "line": 2,
                      "column": 4
                    },
                    "end": {
                      "line": 2,
                      "column": 15
                    },
                    "identifierName": "constructor"
                  },
                  "name": "constructor"
                },
                "kind": "constructor",
                "id": null,
                "generator": false,
                "expression": false,
                "async": false,
                "params": [
                  {
                    "type": "AssignmentPattern",
                    "start": 43,
                    "end": 51,
                    "loc": {
                      "start": {
                        "line": 2,
                        "column": 16
                      },
                      "end": {
                        "line": 2,
                        "column": 24
                      }
                    },
                    "left": {
                      "type": "Identifier",
                      "start": 43,
                      "end": 48,
                      "loc": {
                        "start": {
                          "line": 2,
                          "column": 16
                        },
                        "end": {
                          "line": 2,
                          "column": 21
                        },
                        "identifierName": "items"
                      },
                      "name": "items"
                    },
                    "right": {
                      "type": "ArrayExpression",
                      "start": 49,
                      "end": 51,
                      "loc": {
                        "start": {
                          "line": 2,
                          "column": 22
                        },
                        "end": {
                          "line": 2,
                          "column": 24
                        }
                      },
                      "elements": []
                    }
                  },
                  {
                    "type": "AssignmentPattern",
                    "start": 52,
                    "end": 72,
                    "loc": {
                      "start": {
                        "line": 2,
                        "column": 25
                      },
                      "end": {
                        "line": 2,
                        "column": 45
                      }
                    },
                    "left": {
                      "type": "Identifier",
                      "start": 52,
                      "end": 59,
                      "loc": {
                        "start": {
                          "line": 2,
                          "column": 25
                        },
                        "end": {
                          "line": 2,
                          "column": 32
                        },
                        "identifierName": "isEqual"
                      },
                      "name": "isEqual"
                    },
                    "right": {
                      "type": "ArrowFunctionExpression",
                      "start": 60,
                      "end": 72,
                      "loc": {
                        "start": {
                          "line": 2,
                          "column": 33
                        },
                        "end": {
                          "line": 2,
                          "column": 45
                        }
                      },
                      "id": null,
                      "generator": false,
                      "expression": true,
                      "async": false,
                      "params": [
                        {
                          "type": "Identifier",
                          "start": 61,
                          "end": 62,
                          "loc": {
                            "start": {
                              "line": 2,
                              "column": 34
                            },
                            "end": {
                              "line": 2,
                              "column": 35
                            },
                            "identifierName": "a"
                          },
                          "name": "a"
                        },
                        {
                          "type": "Identifier",
                          "start": 63,
                          "end": 64,
                          "loc": {
                            "start": {
                              "line": 2,
                              "column": 36
                            },
                            "end": {
                              "line": 2,
                              "column": 37
                            },
                            "identifierName": "b"
                          },
                          "name": "b"
                        }
                      ],
                      "body": {
                        "type": "BinaryExpression",
                        "start": 68,
                        "end": 72,
                        "loc": {
                          "start": {
                            "line": 2,
                            "column": 41
                          },
                          "end": {
                            "line": 2,
                            "column": 45
                          }
                        },
                        "left": {
                          "type": "Identifier",
                          "start": 68,
                          "end": 69,
                          "loc": {
                            "start": {
                              "line": 2,
                              "column": 41
                            },
                            "end": {
                              "line": 2,
                              "column": 42
                            },
                            "identifierName": "a"
                          },
                          "name": "a"
                        },
                        "operator": "==",
                        "right": {
                          "type": "Identifier",
                          "start": 71,
                          "end": 72,
                          "loc": {
                            "start": {
                              "line": 2,
                              "column": 44
                            },
                            "end": {
                              "line": 2,
                              "column": 45
                            },
                            "identifierName": "b"
                          },
                          "name": "b"
                        }
                      }
                    }
                  }
                ],
                "body": {
                  "type": "BlockStatement",
                  "start": 78,
                  "end": 125,
                  "loc": {
                    "start": {
                      "line": 3,
                      "column": 4
                    },
                    "end": {
                      "line": 6,
                      "column": 5
                    }
                  },
                  "body": [
                    {
                      "type": "ExpressionStatement",
                      "start": 81,
                      "end": 97,
                      "loc": {
                        "start": {
                          "line": 4,
                          "column": 1
                        },
                        "end": {
                          "line": 4,
                          "column": 17
                        }
                      },
                      "expression": {
                        "type": "AssignmentExpression",
                        "start": 81,
                        "end": 97,
                        "loc": {
                          "start": {
                            "line": 4,
                            "column": 1
                          },
                          "end": {
                            "line": 4,
                            "column": 17
                          }
                        },
                        "operator": "=",
                        "left": {
                          "type": "MemberExpression",
                          "start": 81,
                          "end": 91,
                          "loc": {
                            "start": {
                              "line": 4,
                              "column": 1
                            },
                            "end": {
                              "line": 4,
                              "column": 11
                            }
                          },
                          "object": {
                            "type": "ThisExpression",
                            "start": 81,
                            "end": 85,
                            "loc": {
                              "start": {
                                "line": 4,
                                "column": 1
                              },
                              "end": {
                                "line": 4,
                                "column": 5
                              }
                            }
                          },
                          "property": {
                            "type": "Identifier",
                            "start": 86,
                            "end": 91,
                            "loc": {
                              "start": {
                                "line": 4,
                                "column": 6
                              },
                              "end": {
                                "line": 4,
                                "column": 11
                              },
                              "identifierName": "items"
                            },
                            "name": "items"
                          },
                          "computed": false
                        },
                        "right": {
                          "type": "Identifier",
                          "start": 92,
                          "end": 97,
                          "loc": {
                            "start": {
                              "line": 4,
                              "column": 12
                            },
                            "end": {
                              "line": 4,
                              "column": 17
                            },
                            "identifierName": "items"
                          },
                          "name": "items"
                        }
                      }
                    },
                    {
                      "type": "ExpressionStatement",
                      "start": 99,
                      "end": 119,
                      "loc": {
                        "start": {
                          "line": 5,
                          "column": 1
                        },
                        "end": {
                          "line": 5,
                          "column": 21
                        }
                      },
                      "expression": {
                        "type": "AssignmentExpression",
                        "start": 99,
                        "end": 119,
                        "loc": {
                          "start": {
                            "line": 5,
                            "column": 1
                          },
                          "end": {
                            "line": 5,
                            "column": 21
                          }
                        },
                        "operator": "=",
                        "left": {
                          "type": "MemberExpression",
                          "start": 99,
                          "end": 111,
                          "loc": {
                            "start": {
                              "line": 5,
                              "column": 1
                            },
                            "end": {
                              "line": 5,
                              "column": 13
                            }
                          },
                          "object": {
                            "type": "ThisExpression",
                            "start": 99,
                            "end": 103,
                            "loc": {
                              "start": {
                                "line": 5,
                                "column": 1
                              },
                              "end": {
                                "line": 5,
                                "column": 5
                              }
                            }
                          },
                          "property": {
                            "type": "Identifier",
                            "start": 104,
                            "end": 111,
                            "loc": {
                              "start": {
                                "line": 5,
                                "column": 6
                              },
                              "end": {
                                "line": 5,
                                "column": 13
                              },
                              "identifierName": "isEqual"
                            },
                            "name": "isEqual"
                          },
                          "computed": false
                        },
                        "right": {
                          "type": "Identifier",
                          "start": 112,
                          "end": 119,
                          "loc": {
                            "start": {
                              "line": 5,
                              "column": 14
                            },
                            "end": {
                              "line": 5,
                              "column": 21
                            },
                            "identifierName": "isEqual"
                          },
                          "name": "isEqual"
                        }
                      }
                    }
                  ],
                  "directives": []
                }
              },
              {
                "type": "ClassMethod",
                "start": 130,
                "end": 302,
                "loc": {
                  "start": {
                    "line": 7,
                    "column": 4
                  },
                  "end": {
                    "line": 18,
                    "column": 5
                  }
                },
                "static": false,
                "computed": false,
                "key": {
                  "type": "Identifier",
                  "start": 130,
                  "end": 133,
                  "loc": {
                    "start": {
                      "line": 7,
                      "column": 4
                    },
                    "end": {
                      "line": 7,
                      "column": 7
                    },
                    "identifierName": "add"
                  },
                  "name": "add"
                },
                "kind": "method",
                "id": null,
                "generator": false,
                "expression": false,
                "async": false,
                "params": [
                  {
                    "type": "Identifier",
                    "start": 134,
                    "end": 138,
                    "loc": {
                      "start": {
                        "line": 7,
                        "column": 8
                      },
                      "end": {
                        "line": 7,
                        "column": 12
                      },
                      "identifierName": "item"
                    },
                    "name": "item"
                  }
                ],
                "body": {
                  "type": "BlockStatement",
                  "start": 144,
                  "end": 302,
                  "loc": {
                    "start": {
                      "line": 8,
                      "column": 4
                    },
                    "end": {
                      "line": 18,
                      "column": 5
                    }
                  },
                  "body": [
                    {
                      "type": "ForStatement",
                      "start": 147,
                      "end": 259,
                      "loc": {
                        "start": {
                          "line": 9,
                          "column": 1
                        },
                        "end": {
                          "line": 15,
                          "column": 2
                        }
                      },
                      "init": {
                        "type": "VariableDeclaration",
                        "start": 151,
                        "end": 158,
                        "loc": {
                          "start": {
                            "line": 9,
                            "column": 5
                          },
                          "end": {
                            "line": 9,
                            "column": 12
                          }
                        },
                        "declarations": [
                          {
                            "type": "VariableDeclarator",
                            "start": 155,
                            "end": 158,
                            "loc": {
                              "start": {
                                "line": 9,
                                "column": 9
                              },
                              "end": {
                                "line": 9,
                                "column": 12
                              }
                            },
                            "id": {
                              "type": "Identifier",
                              "start": 155,
                              "end": 156,
                              "loc": {
                                "start": {
                                  "line": 9,
                                  "column": 9
                                },
                                "end": {
                                  "line": 9,
                                  "column": 10
                                },
                                "identifierName": "i"
                              },
                              "name": "i"
                            },
                            "init": {
                              "type": "NumericLiteral",
                              "start": 157,
                              "end": 158,
                              "loc": {
                                "start": {
                                  "line": 9,
                                  "column": 11
                                },
                                "end": {
                                  "line": 9,
                                  "column": 12
                                }
                              },
                              "extra": {
                                "rawValue": 0,
                                "raw": "0"
                              },
                              "value": 0
                            }
                          }
                        ],
                        "kind": "let"
                      },
                      "test": {
                        "type": "BinaryExpression",
                        "start": 159,
                        "end": 178,
                        "loc": {
                          "start": {
                            "line": 9,
                            "column": 13
                          },
                          "end": {
                            "line": 9,
                            "column": 32
                          }
                        },
                        "left": {
                          "type": "Identifier",
                          "start": 159,
                          "end": 160,
                          "loc": {
                            "start": {
                              "line": 9,
                              "column": 13
                            },
                            "end": {
                              "line": 9,
                              "column": 14
                            },
                            "identifierName": "i"
                          },
                          "name": "i"
                        },
                        "operator": "<",
                        "right": {
                          "type": "MemberExpression",
                          "start": 161,
                          "end": 178,
                          "loc": {
                            "start": {
                              "line": 9,
                              "column": 15
                            },
                            "end": {
                              "line": 9,
                              "column": 32
                            }
                          },
                          "object": {
                            "type": "MemberExpression",
                            "start": 161,
                            "end": 171,
                            "loc": {
                              "start": {
                                "line": 9,
                                "column": 15
                              },
                              "end": {
                                "line": 9,
                                "column": 25
                              }
                            },
                            "object": {
                              "type": "ThisExpression",
                              "start": 161,
                              "end": 165,
                              "loc": {
                                "start": {
                                  "line": 9,
                                  "column": 15
                                },
                                "end": {
                                  "line": 9,
                                  "column": 19
                                }
                              }
                            },
                            "property": {
                              "type": "Identifier",
                              "start": 166,
                              "end": 171,
                              "loc": {
                                "start": {
                                  "line": 9,
                                  "column": 20
                                },
                                "end": {
                                  "line": 9,
                                  "column": 25
                                },
                                "identifierName": "items"
                              },
                              "name": "items"
                            },
                            "computed": false
                          },
                          "property": {
                            "type": "Identifier",
                            "start": 172,
                            "end": 178,
                            "loc": {
                              "start": {
                                "line": 9,
                                "column": 26
                              },
                              "end": {
                                "line": 9,
                                "column": 32
                              },
                              "identifierName": "length"
                            },
                            "name": "length"
                          },
                          "computed": false
                        }
                      },
                      "update": {
                        "type": "UpdateExpression",
                        "start": 179,
                        "end": 182,
                        "loc": {
                          "start": {
                            "line": 9,
                            "column": 33
                          },
                          "end": {
                            "line": 9,
                            "column": 36
                          }
                        },
                        "operator": "++",
                        "prefix": false,
                        "argument": {
                          "type": "Identifier",
                          "start": 179,
                          "end": 180,
                          "loc": {
                            "start": {
                              "line": 9,
                              "column": 33
                            },
                            "end": {
                              "line": 9,
                              "column": 34
                            },
                            "identifierName": "i"
                          },
                          "name": "i"
                        }
                      },
                      "body": {
                        "type": "BlockStatement",
                        "start": 185,
                        "end": 259,
                        "loc": {
                          "start": {
                            "line": 10,
                            "column": 1
                          },
                          "end": {
                            "line": 15,
                            "column": 2
                          }
                        },
                        "body": [
                          {
                            "type": "IfStatement",
                            "start": 192,
                            "end": 256,
                            "loc": {
                              "start": {
                                "line": 11,
                                "column": 5
                              },
                              "end": {
                                "line": 14,
                                "column": 6
                              }
                            },
                            "test": {
                              "type": "CallExpression",
                              "start": 195,
                              "end": 227,
                              "loc": {
                                "start": {
                                  "line": 11,
                                  "column": 8
                                },
                                "end": {
                                  "line": 11,
                                  "column": 40
                                }
                              },
                              "callee": {
                                "type": "MemberExpression",
                                "start": 195,
                                "end": 207,
                                "loc": {
                                  "start": {
                                    "line": 11,
                                    "column": 8
                                  },
                                  "end": {
                                    "line": 11,
                                    "column": 20
                                  }
                                },
                                "object": {
                                  "type": "ThisExpression",
                                  "start": 195,
                                  "end": 199,
                                  "loc": {
                                    "start": {
                                      "line": 11,
                                      "column": 8
                                    },
                                    "end": {
                                      "line": 11,
                                      "column": 12
                                    }
                                  }
                                },
                                "property": {
                                  "type": "Identifier",
                                  "start": 200,
                                  "end": 207,
                                  "loc": {
                                    "start": {
                                      "line": 11,
                                      "column": 13
                                    },
                                    "end": {
                                      "line": 11,
                                      "column": 20
                                    },
                                    "identifierName": "isEqual"
                                  },
                                  "name": "isEqual"
                                },
                                "computed": false
                              },
                              "arguments": [
                                {
                                  "type": "MemberExpression",
                                  "start": 208,
                                  "end": 221,
                                  "loc": {
                                    "start": {
                                      "line": 11,
                                      "column": 21
                                    },
                                    "end": {
                                      "line": 11,
                                      "column": 34
                                    }
                                  },
                                  "object": {
                                    "type": "MemberExpression",
                                    "start": 208,
                                    "end": 218,
                                    "loc": {
                                      "start": {
                                        "line": 11,
                                        "column": 21
                                      },
                                      "end": {
                                        "line": 11,
                                        "column": 31
                                      }
                                    },
                                    "object": {
                                      "type": "ThisExpression",
                                      "start": 208,
                                      "end": 212,
                                      "loc": {
                                        "start": {
                                          "line": 11,
                                          "column": 21
                                        },
                                        "end": {
                                          "line": 11,
                                          "column": 25
                                        }
                                      }
                                    },
                                    "property": {
                                      "type": "Identifier",
                                      "start": 213,
                                      "end": 218,
                                      "loc": {
                                        "start": {
                                          "line": 11,
                                          "column": 26
                                        },
                                        "end": {
                                          "line": 11,
                                          "column": 31
                                        },
                                        "identifierName": "items"
                                      },
                                      "name": "items"
                                    },
                                    "computed": false
                                  },
                                  "property": {
                                    "type": "Identifier",
                                    "start": 219,
                                    "end": 220,
                                    "loc": {
                                      "start": {
                                        "line": 11,
                                        "column": 32
                                      },
                                      "end": {
                                        "line": 11,
                                        "column": 33
                                      },
                                      "identifierName": "i"
                                    },
                                    "name": "i"
                                  },
                                  "computed": true
                                },
                                {
                                  "type": "Identifier",
                                  "start": 222,
                                  "end": 226,
                                  "loc": {
                                    "start": {
                                      "line": 11,
                                      "column": 35
                                    },
                                    "end": {
                                      "line": 11,
                                      "column": 39
                                    },
                                    "identifierName": "item"
                                  },
                                  "name": "item"
                                }
                              ]
                            },
                            "consequent": {
                              "type": "BlockStatement",
                              "start": 234,
                              "end": 256,
                              "loc": {
                                "start": {
                                  "line": 12,
                                  "column": 5
                                },
                                "end": {
                                  "line": 14,
                                  "column": 6
                                }
                              },
                              "body": [
                                {
                                  "type": "ReturnStatement",
                                  "start": 238,
                                  "end": 249,
                                  "loc": {
                                    "start": {
                                      "line": 13,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 13,
                                      "column": 13
                                    }
                                  },
                                  "argument": {
                                    "type": "BooleanLiteral",
                                    "start": 245,
                                    "end": 249,
                                    "loc": {
                                      "start": {
                                        "line": 13,
                                        "column": 9
                                      },
                                      "end": {
                                        "line": 13,
                                        "column": 13
                                      }
                                    },
                                    "value": true
                                  }
                                }
                              ],
                              "directives": []
                            },
                            "alternate": null
                          }
                        ],
                        "directives": []
                      }
                    },
                    {
                      "type": "ExpressionStatement",
                      "start": 261,
                      "end": 283,
                      "loc": {
                        "start": {
                          "line": 16,
                          "column": 1
                        },
                        "end": {
                          "line": 16,
                          "column": 23
                        }
                      },
                      "expression": {
                        "type": "CallExpression",
                        "start": 261,
                        "end": 282,
                        "loc": {
                          "start": {
                            "line": 16,
                            "column": 1
                          },
                          "end": {
                            "line": 16,
                            "column": 22
                          }
                        },
                        "callee": {
                          "type": "MemberExpression",
                          "start": 261,
                          "end": 276,
                          "loc": {
                            "start": {
                              "line": 16,
                              "column": 1
                            },
                            "end": {
                              "line": 16,
                              "column": 16
                            }
                          },
                          "object": {
                            "type": "MemberExpression",
                            "start": 261,
                            "end": 271,
                            "loc": {
                              "start": {
                                "line": 16,
                                "column": 1
                              },
                              "end": {
                                "line": 16,
                                "column": 11
                              }
                            },
                            "object": {
                              "type": "ThisExpression",
                              "start": 261,
                              "end": 265,
                              "loc": {
                                "start": {
                                  "line": 16,
                                  "column": 1
                                },
                                "end": {
                                  "line": 16,
                                  "column": 5
                                }
                              }
                            },
                            "property": {
                              "type": "Identifier",
                              "start": 266,
                              "end": 271,
                              "loc": {
                                "start": {
                                  "line": 16,
                                  "column": 6
                                },
                                "end": {
                                  "line": 16,
                                  "column": 11
                                },
                                "identifierName": "items"
                              },
                              "name": "items"
                            },
                            "computed": false
                          },
                          "property": {
                            "type": "Identifier",
                            "start": 272,
                            "end": 276,
                            "loc": {
                              "start": {
                                "line": 16,
                                "column": 12
                              },
                              "end": {
                                "line": 16,
                                "column": 16
                              },
                              "identifierName": "push"
                            },
                            "name": "push"
                          },
                          "computed": false
                        },
                        "arguments": [
                          {
                            "type": "Identifier",
                            "start": 277,
                            "end": 281,
                            "loc": {
                              "start": {
                                "line": 16,
                                "column": 17
                              },
                              "end": {
                                "line": 16,
                                "column": 21
                              },
                              "identifierName": "item"
                            },
                            "name": "item"
                          }
                        ]
                      }
                    },
                    {
                      "type": "ReturnStatement",
                      "start": 285,
                      "end": 296,
                      "loc": {
                        "start": {
                          "line": 17,
                          "column": 1
                        },
                        "end": {
                          "line": 17,
                          "column": 12
                        }
                      },
                      "argument": {
                        "type": "BooleanLiteral",
                        "start": 292,
                        "end": 296,
                        "loc": {
                          "start": {
                            "line": 17,
                            "column": 8
                          },
                          "end": {
                            "line": 17,
                            "column": 12
                          }
                        },
                        "value": true
                      }
                    }
                  ],
                  "directives": []
                }
              },
              {
                "type": "ClassMethod",
                "start": 307,
                "end": 986,
                "loc": {
                  "start": {
                    "line": 19,
                    "column": 4
                  },
                  "end": {
                    "line": 59,
                    "column": 5
                  }
                },
                "static": false,
                "computed": false,
                "key": {
                  "type": "Identifier",
                  "start": 307,
                  "end": 313,
                  "loc": {
                    "start": {
                      "line": 19,
                      "column": 4
                    },
                    "end": {
                      "line": 19,
                      "column": 10
                    },
                    "identifierName": "remove"
                  },
                  "name": "remove"
                },
                "kind": "method",
                "id": null,
                "generator": false,
                "expression": false,
                "async": false,
                "params": [
                  {
                    "type": "Identifier",
                    "start": 314,
                    "end": 318,
                    "loc": {
                      "start": {
                        "line": 19,
                        "column": 11
                      },
                      "end": {
                        "line": 19,
                        "column": 15
                      },
                      "identifierName": "item"
                    },
                    "name": "item"
                  }
                ],
                "body": {
                  "type": "BlockStatement",
                  "start": 324,
                  "end": 986,
                  "loc": {
                    "start": {
                      "line": 20,
                      "column": 4
                    },
                    "end": {
                      "line": 59,
                      "column": 5
                    }
                  },
                  "body": [
                    {
                      "type": "VariableDeclaration",
                      "start": 327,
                      "end": 340,
                      "loc": {
                        "start": {
                          "line": 21,
                          "column": 1
                        },
                        "end": {
                          "line": 21,
                          "column": 14
                        }
                      },
                      "declarations": [
                        {
                          "type": "VariableDeclarator",
                          "start": 331,
                          "end": 339,
                          "loc": {
                            "start": {
                              "line": 21,
                              "column": 5
                            },
                            "end": {
                              "line": 21,
                              "column": 13
                            }
                          },
                          "id": {
                            "type": "Identifier",
                            "start": 331,
                            "end": 336,
                            "loc": {
                              "start": {
                                "line": 21,
                                "column": 5
                              },
                              "end": {
                                "line": 21,
                                "column": 10
                              },
                              "identifierName": "index"
                            },
                            "name": "index"
                          },
                          "init": {
                            "type": "UnaryExpression",
                            "start": 337,
                            "end": 339,
                            "loc": {
                              "start": {
                                "line": 21,
                                "column": 11
                              },
                              "end": {
                                "line": 21,
                                "column": 13
                              }
                            },
                            "operator": "-",
                            "prefix": true,
                            "argument": {
                              "type": "NumericLiteral",
                              "start": 338,
                              "end": 339,
                              "loc": {
                                "start": {
                                  "line": 21,
                                  "column": 12
                                },
                                "end": {
                                  "line": 21,
                                  "column": 13
                                }
                              },
                              "extra": {
                                "rawValue": 1,
                                "raw": "1"
                              },
                              "value": 1
                            },
                            "extra": {
                              "parenthesizedArgument": false
                            }
                          }
                        }
                      ],
                      "kind": "let"
                    },
                    {
                      "type": "ForStatement",
                      "start": 342,
                      "end": 460,
                      "loc": {
                        "start": {
                          "line": 22,
                          "column": 1
                        },
                        "end": {
                          "line": 29,
                          "column": 2
                        }
                      },
                      "init": {
                        "type": "VariableDeclaration",
                        "start": 346,
                        "end": 353,
                        "loc": {
                          "start": {
                            "line": 22,
                            "column": 5
                          },
                          "end": {
                            "line": 22,
                            "column": 12
                          }
                        },
                        "declarations": [
                          {
                            "type": "VariableDeclarator",
                            "start": 350,
                            "end": 353,
                            "loc": {
                              "start": {
                                "line": 22,
                                "column": 9
                              },
                              "end": {
                                "line": 22,
                                "column": 12
                              }
                            },
                            "id": {
                              "type": "Identifier",
                              "start": 350,
                              "end": 351,
                              "loc": {
                                "start": {
                                  "line": 22,
                                  "column": 9
                                },
                                "end": {
                                  "line": 22,
                                  "column": 10
                                },
                                "identifierName": "i"
                              },
                              "name": "i"
                            },
                            "init": {
                              "type": "NumericLiteral",
                              "start": 352,
                              "end": 353,
                              "loc": {
                                "start": {
                                  "line": 22,
                                  "column": 11
                                },
                                "end": {
                                  "line": 22,
                                  "column": 12
                                }
                              },
                              "extra": {
                                "rawValue": 0,
                                "raw": "0"
                              },
                              "value": 0
                            }
                          }
                        ],
                        "kind": "let"
                      },
                      "test": {
                        "type": "BinaryExpression",
                        "start": 354,
                        "end": 373,
                        "loc": {
                          "start": {
                            "line": 22,
                            "column": 13
                          },
                          "end": {
                            "line": 22,
                            "column": 32
                          }
                        },
                        "left": {
                          "type": "Identifier",
                          "start": 354,
                          "end": 355,
                          "loc": {
                            "start": {
                              "line": 22,
                              "column": 13
                            },
                            "end": {
                              "line": 22,
                              "column": 14
                            },
                            "identifierName": "i"
                          },
                          "name": "i"
                        },
                        "operator": "<",
                        "right": {
                          "type": "MemberExpression",
                          "start": 356,
                          "end": 373,
                          "loc": {
                            "start": {
                              "line": 22,
                              "column": 15
                            },
                            "end": {
                              "line": 22,
                              "column": 32
                            }
                          },
                          "object": {
                            "type": "MemberExpression",
                            "start": 356,
                            "end": 366,
                            "loc": {
                              "start": {
                                "line": 22,
                                "column": 15
                              },
                              "end": {
                                "line": 22,
                                "column": 25
                              }
                            },
                            "object": {
                              "type": "ThisExpression",
                              "start": 356,
                              "end": 360,
                              "loc": {
                                "start": {
                                  "line": 22,
                                  "column": 15
                                },
                                "end": {
                                  "line": 22,
                                  "column": 19
                                }
                              }
                            },
                            "property": {
                              "type": "Identifier",
                              "start": 361,
                              "end": 366,
                              "loc": {
                                "start": {
                                  "line": 22,
                                  "column": 20
                                },
                                "end": {
                                  "line": 22,
                                  "column": 25
                                },
                                "identifierName": "items"
                              },
                              "name": "items"
                            },
                            "computed": false
                          },
                          "property": {
                            "type": "Identifier",
                            "start": 367,
                            "end": 373,
                            "loc": {
                              "start": {
                                "line": 22,
                                "column": 26
                              },
                              "end": {
                                "line": 22,
                                "column": 32
                              },
                              "identifierName": "length"
                            },
                            "name": "length"
                          },
                          "computed": false
                        }
                      },
                      "update": {
                        "type": "UpdateExpression",
                        "start": 374,
                        "end": 377,
                        "loc": {
                          "start": {
                            "line": 22,
                            "column": 33
                          },
                          "end": {
                            "line": 22,
                            "column": 36
                          }
                        },
                        "operator": "++",
                        "prefix": false,
                        "argument": {
                          "type": "Identifier",
                          "start": 374,
                          "end": 375,
                          "loc": {
                            "start": {
                              "line": 22,
                              "column": 33
                            },
                            "end": {
                              "line": 22,
                              "column": 34
                            },
                            "identifierName": "i"
                          },
                          "name": "i"
                        }
                      },
                      "body": {
                        "type": "BlockStatement",
                        "start": 380,
                        "end": 460,
                        "loc": {
                          "start": {
                            "line": 23,
                            "column": 1
                          },
                          "end": {
                            "line": 29,
                            "column": 2
                          }
                        },
                        "body": [
                          {
                            "type": "IfStatement",
                            "start": 387,
                            "end": 457,
                            "loc": {
                              "start": {
                                "line": 24,
                                "column": 5
                              },
                              "end": {
                                "line": 28,
                                "column": 6
                              }
                            },
                            "test": {
                              "type": "CallExpression",
                              "start": 390,
                              "end": 422,
                              "loc": {
                                "start": {
                                  "line": 24,
                                  "column": 8
                                },
                                "end": {
                                  "line": 24,
                                  "column": 40
                                }
                              },
                              "callee": {
                                "type": "MemberExpression",
                                "start": 390,
                                "end": 402,
                                "loc": {
                                  "start": {
                                    "line": 24,
                                    "column": 8
                                  },
                                  "end": {
                                    "line": 24,
                                    "column": 20
                                  }
                                },
                                "object": {
                                  "type": "ThisExpression",
                                  "start": 390,
                                  "end": 394,
                                  "loc": {
                                    "start": {
                                      "line": 24,
                                      "column": 8
                                    },
                                    "end": {
                                      "line": 24,
                                      "column": 12
                                    }
                                  }
                                },
                                "property": {
                                  "type": "Identifier",
                                  "start": 395,
                                  "end": 402,
                                  "loc": {
                                    "start": {
                                      "line": 24,
                                      "column": 13
                                    },
                                    "end": {
                                      "line": 24,
                                      "column": 20
                                    },
                                    "identifierName": "isEqual"
                                  },
                                  "name": "isEqual"
                                },
                                "computed": false
                              },
                              "arguments": [
                                {
                                  "type": "MemberExpression",
                                  "start": 403,
                                  "end": 416,
                                  "loc": {
                                    "start": {
                                      "line": 24,
                                      "column": 21
                                    },
                                    "end": {
                                      "line": 24,
                                      "column": 34
                                    }
                                  },
                                  "object": {
                                    "type": "MemberExpression",
                                    "start": 403,
                                    "end": 413,
                                    "loc": {
                                      "start": {
                                        "line": 24,
                                        "column": 21
                                      },
                                      "end": {
                                        "line": 24,
                                        "column": 31
                                      }
                                    },
                                    "object": {
                                      "type": "ThisExpression",
                                      "start": 403,
                                      "end": 407,
                                      "loc": {
                                        "start": {
                                          "line": 24,
                                          "column": 21
                                        },
                                        "end": {
                                          "line": 24,
                                          "column": 25
                                        }
                                      }
                                    },
                                    "property": {
                                      "type": "Identifier",
                                      "start": 408,
                                      "end": 413,
                                      "loc": {
                                        "start": {
                                          "line": 24,
                                          "column": 26
                                        },
                                        "end": {
                                          "line": 24,
                                          "column": 31
                                        },
                                        "identifierName": "items"
                                      },
                                      "name": "items"
                                    },
                                    "computed": false
                                  },
                                  "property": {
                                    "type": "Identifier",
                                    "start": 414,
                                    "end": 415,
                                    "loc": {
                                      "start": {
                                        "line": 24,
                                        "column": 32
                                      },
                                      "end": {
                                        "line": 24,
                                        "column": 33
                                      },
                                      "identifierName": "i"
                                    },
                                    "name": "i"
                                  },
                                  "computed": true
                                },
                                {
                                  "type": "Identifier",
                                  "start": 417,
                                  "end": 421,
                                  "loc": {
                                    "start": {
                                      "line": 24,
                                      "column": 35
                                    },
                                    "end": {
                                      "line": 24,
                                      "column": 39
                                    },
                                    "identifierName": "item"
                                  },
                                  "name": "item"
                                }
                              ]
                            },
                            "consequent": {
                              "type": "BlockStatement",
                              "start": 429,
                              "end": 457,
                              "loc": {
                                "start": {
                                  "line": 25,
                                  "column": 5
                                },
                                "end": {
                                  "line": 28,
                                  "column": 6
                                }
                              },
                              "body": [
                                {
                                  "type": "ExpressionStatement",
                                  "start": 433,
                                  "end": 441,
                                  "loc": {
                                    "start": {
                                      "line": 26,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 26,
                                      "column": 10
                                    }
                                  },
                                  "expression": {
                                    "type": "AssignmentExpression",
                                    "start": 433,
                                    "end": 440,
                                    "loc": {
                                      "start": {
                                        "line": 26,
                                        "column": 2
                                      },
                                      "end": {
                                        "line": 26,
                                        "column": 9
                                      }
                                    },
                                    "operator": "=",
                                    "left": {
                                      "type": "Identifier",
                                      "start": 433,
                                      "end": 438,
                                      "loc": {
                                        "start": {
                                          "line": 26,
                                          "column": 2
                                        },
                                        "end": {
                                          "line": 26,
                                          "column": 7
                                        },
                                        "identifierName": "index"
                                      },
                                      "name": "index"
                                    },
                                    "right": {
                                      "type": "Identifier",
                                      "start": 439,
                                      "end": 440,
                                      "loc": {
                                        "start": {
                                          "line": 26,
                                          "column": 8
                                        },
                                        "end": {
                                          "line": 26,
                                          "column": 9
                                        },
                                        "identifierName": "i"
                                      },
                                      "name": "i"
                                    }
                                  }
                                },
                                {
                                  "type": "BreakStatement",
                                  "start": 444,
                                  "end": 450,
                                  "loc": {
                                    "start": {
                                      "line": 27,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 27,
                                      "column": 8
                                    }
                                  },
                                  "label": null
                                }
                              ],
                              "directives": []
                            },
                            "alternate": null
                          }
                        ],
                        "directives": []
                      }
                    },
                    {
                      "type": "IfStatement",
                      "start": 462,
                      "end": 961,
                      "loc": {
                        "start": {
                          "line": 30,
                          "column": 1
                        },
                        "end": {
                          "line": 56,
                          "column": 2
                        }
                      },
                      "test": {
                        "type": "BinaryExpression",
                        "start": 465,
                        "end": 473,
                        "loc": {
                          "start": {
                            "line": 30,
                            "column": 4
                          },
                          "end": {
                            "line": 30,
                            "column": 12
                          }
                        },
                        "left": {
                          "type": "Identifier",
                          "start": 465,
                          "end": 470,
                          "loc": {
                            "start": {
                              "line": 30,
                              "column": 4
                            },
                            "end": {
                              "line": 30,
                              "column": 9
                            },
                            "identifierName": "index"
                          },
                          "name": "index"
                        },
                        "operator": ">=",
                        "right": {
                          "type": "NumericLiteral",
                          "start": 472,
                          "end": 473,
                          "loc": {
                            "start": {
                              "line": 30,
                              "column": 11
                            },
                            "end": {
                              "line": 30,
                              "column": 12
                            }
                          },
                          "extra": {
                            "rawValue": 0,
                            "raw": "0"
                          },
                          "value": 0
                        }
                      },
                      "consequent": {
                        "type": "BlockStatement",
                        "start": 476,
                        "end": 961,
                        "loc": {
                          "start": {
                            "line": 31,
                            "column": 1
                          },
                          "end": {
                            "line": 56,
                            "column": 2
                          }
                        },
                        "body": [
                          {
                            "type": "IfStatement",
                            "start": 483,
                            "end": 742,
                            "loc": {
                              "start": {
                                "line": 32,
                                "column": 5
                              },
                              "end": {
                                "line": 43,
                                "column": 6
                              }
                            },
                            "test": {
                              "type": "LogicalExpression",
                              "start": 486,
                              "end": 522,
                              "loc": {
                                "start": {
                                  "line": 32,
                                  "column": 8
                                },
                                "end": {
                                  "line": 32,
                                  "column": 44
                                }
                              },
                              "left": {
                                "type": "BinaryExpression",
                                "start": 486,
                                "end": 493,
                                "loc": {
                                  "start": {
                                    "line": 32,
                                    "column": 8
                                  },
                                  "end": {
                                    "line": 32,
                                    "column": 15
                                  }
                                },
                                "left": {
                                  "type": "Identifier",
                                  "start": 486,
                                  "end": 491,
                                  "loc": {
                                    "start": {
                                      "line": 32,
                                      "column": 8
                                    },
                                    "end": {
                                      "line": 32,
                                      "column": 13
                                    },
                                    "identifierName": "index"
                                  },
                                  "name": "index"
                                },
                                "operator": ">",
                                "right": {
                                  "type": "NumericLiteral",
                                  "start": 492,
                                  "end": 493,
                                  "loc": {
                                    "start": {
                                      "line": 32,
                                      "column": 14
                                    },
                                    "end": {
                                      "line": 32,
                                      "column": 15
                                    }
                                  },
                                  "extra": {
                                    "rawValue": 0,
                                    "raw": "0"
                                  },
                                  "value": 0
                                }
                              },
                              "operator": "&&",
                              "right": {
                                "type": "BinaryExpression",
                                "start": 497,
                                "end": 522,
                                "loc": {
                                  "start": {
                                    "line": 32,
                                    "column": 19
                                  },
                                  "end": {
                                    "line": 32,
                                    "column": 44
                                  }
                                },
                                "left": {
                                  "type": "Identifier",
                                  "start": 497,
                                  "end": 502,
                                  "loc": {
                                    "start": {
                                      "line": 32,
                                      "column": 19
                                    },
                                    "end": {
                                      "line": 32,
                                      "column": 24
                                    },
                                    "identifierName": "index"
                                  },
                                  "name": "index"
                                },
                                "operator": "<",
                                "right": {
                                  "type": "BinaryExpression",
                                  "start": 503,
                                  "end": 522,
                                  "loc": {
                                    "start": {
                                      "line": 32,
                                      "column": 25
                                    },
                                    "end": {
                                      "line": 32,
                                      "column": 44
                                    }
                                  },
                                  "left": {
                                    "type": "MemberExpression",
                                    "start": 503,
                                    "end": 520,
                                    "loc": {
                                      "start": {
                                        "line": 32,
                                        "column": 25
                                      },
                                      "end": {
                                        "line": 32,
                                        "column": 42
                                      }
                                    },
                                    "object": {
                                      "type": "MemberExpression",
                                      "start": 503,
                                      "end": 513,
                                      "loc": {
                                        "start": {
                                          "line": 32,
                                          "column": 25
                                        },
                                        "end": {
                                          "line": 32,
                                          "column": 35
                                        }
                                      },
                                      "object": {
                                        "type": "ThisExpression",
                                        "start": 503,
                                        "end": 507,
                                        "loc": {
                                          "start": {
                                            "line": 32,
                                            "column": 25
                                          },
                                          "end": {
                                            "line": 32,
                                            "column": 29
                                          }
                                        }
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "start": 508,
                                        "end": 513,
                                        "loc": {
                                          "start": {
                                            "line": 32,
                                            "column": 30
                                          },
                                          "end": {
                                            "line": 32,
                                            "column": 35
                                          },
                                          "identifierName": "items"
                                        },
                                        "name": "items"
                                      },
                                      "computed": false
                                    },
                                    "property": {
                                      "type": "Identifier",
                                      "start": 514,
                                      "end": 520,
                                      "loc": {
                                        "start": {
                                          "line": 32,
                                          "column": 36
                                        },
                                        "end": {
                                          "line": 32,
                                          "column": 42
                                        },
                                        "identifierName": "length"
                                      },
                                      "name": "length"
                                    },
                                    "computed": false
                                  },
                                  "operator": "-",
                                  "right": {
                                    "type": "NumericLiteral",
                                    "start": 521,
                                    "end": 522,
                                    "loc": {
                                      "start": {
                                        "line": 32,
                                        "column": 43
                                      },
                                      "end": {
                                        "line": 32,
                                        "column": 44
                                      }
                                    },
                                    "extra": {
                                      "rawValue": 1,
                                      "raw": "1"
                                    },
                                    "value": 1
                                  }
                                }
                              }
                            },
                            "consequent": {
                              "type": "BlockStatement",
                              "start": 529,
                              "end": 742,
                              "loc": {
                                "start": {
                                  "line": 33,
                                  "column": 5
                                },
                                "end": {
                                  "line": 43,
                                  "column": 6
                                }
                              },
                              "body": [
                                {
                                  "type": "VariableDeclaration",
                                  "start": 533,
                                  "end": 587,
                                  "loc": {
                                    "start": {
                                      "line": 34,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 34,
                                      "column": 56
                                    }
                                  },
                                  "declarations": [
                                    {
                                      "type": "VariableDeclarator",
                                      "start": 537,
                                      "end": 587,
                                      "loc": {
                                        "start": {
                                          "line": 34,
                                          "column": 6
                                        },
                                        "end": {
                                          "line": 34,
                                          "column": 56
                                        }
                                      },
                                      "id": {
                                        "type": "Identifier",
                                        "start": 537,
                                        "end": 543,
                                        "loc": {
                                          "start": {
                                            "line": 34,
                                            "column": 6
                                          },
                                          "end": {
                                            "line": 34,
                                            "column": 12
                                          },
                                          "identifierName": "array1"
                                        },
                                        "name": "array1"
                                      },
                                      "init": {
                                        "type": "CallExpression",
                                        "start": 544,
                                        "end": 587,
                                        "loc": {
                                          "start": {
                                            "line": 34,
                                            "column": 13
                                          },
                                          "end": {
                                            "line": 34,
                                            "column": 56
                                          }
                                        },
                                        "callee": {
                                          "type": "MemberExpression",
                                          "start": 544,
                                          "end": 560,
                                          "loc": {
                                            "start": {
                                              "line": 34,
                                              "column": 13
                                            },
                                            "end": {
                                              "line": 34,
                                              "column": 29
                                            }
                                          },
                                          "object": {
                                            "type": "MemberExpression",
                                            "start": 544,
                                            "end": 554,
                                            "loc": {
                                              "start": {
                                                "line": 34,
                                                "column": 13
                                              },
                                              "end": {
                                                "line": 34,
                                                "column": 23
                                              }
                                            },
                                            "object": {
                                              "type": "ThisExpression",
                                              "start": 544,
                                              "end": 548,
                                              "loc": {
                                                "start": {
                                                  "line": 34,
                                                  "column": 13
                                                },
                                                "end": {
                                                  "line": 34,
                                                  "column": 17
                                                }
                                              }
                                            },
                                            "property": {
                                              "type": "Identifier",
                                              "start": 549,
                                              "end": 554,
                                              "loc": {
                                                "start": {
                                                  "line": 34,
                                                  "column": 18
                                                },
                                                "end": {
                                                  "line": 34,
                                                  "column": 23
                                                },
                                                "identifierName": "items"
                                              },
                                              "name": "items"
                                            },
                                            "computed": false
                                          },
                                          "property": {
                                            "type": "Identifier",
                                            "start": 555,
                                            "end": 560,
                                            "loc": {
                                              "start": {
                                                "line": 34,
                                                "column": 24
                                              },
                                              "end": {
                                                "line": 34,
                                                "column": 29
                                              },
                                              "identifierName": "slice"
                                            },
                                            "name": "slice"
                                          },
                                          "computed": false
                                        },
                                        "arguments": [
                                          {
                                            "type": "BinaryExpression",
                                            "start": 561,
                                            "end": 568,
                                            "loc": {
                                              "start": {
                                                "line": 34,
                                                "column": 30
                                              },
                                              "end": {
                                                "line": 34,
                                                "column": 37
                                              }
                                            },
                                            "left": {
                                              "type": "Identifier",
                                              "start": 561,
                                              "end": 566,
                                              "loc": {
                                                "start": {
                                                  "line": 34,
                                                  "column": 30
                                                },
                                                "end": {
                                                  "line": 34,
                                                  "column": 35
                                                },
                                                "identifierName": "index"
                                              },
                                              "name": "index"
                                            },
                                            "operator": "+",
                                            "right": {
                                              "type": "NumericLiteral",
                                              "start": 567,
                                              "end": 568,
                                              "loc": {
                                                "start": {
                                                  "line": 34,
                                                  "column": 36
                                                },
                                                "end": {
                                                  "line": 34,
                                                  "column": 37
                                                }
                                              },
                                              "extra": {
                                                "rawValue": 1,
                                                "raw": "1"
                                              },
                                              "value": 1
                                            }
                                          },
                                          {
                                            "type": "MemberExpression",
                                            "start": 569,
                                            "end": 586,
                                            "loc": {
                                              "start": {
                                                "line": 34,
                                                "column": 38
                                              },
                                              "end": {
                                                "line": 34,
                                                "column": 55
                                              }
                                            },
                                            "object": {
                                              "type": "MemberExpression",
                                              "start": 569,
                                              "end": 579,
                                              "loc": {
                                                "start": {
                                                  "line": 34,
                                                  "column": 38
                                                },
                                                "end": {
                                                  "line": 34,
                                                  "column": 48
                                                }
                                              },
                                              "object": {
                                                "type": "ThisExpression",
                                                "start": 569,
                                                "end": 573,
                                                "loc": {
                                                  "start": {
                                                    "line": 34,
                                                    "column": 38
                                                  },
                                                  "end": {
                                                    "line": 34,
                                                    "column": 42
                                                  }
                                                }
                                              },
                                              "property": {
                                                "type": "Identifier",
                                                "start": 574,
                                                "end": 579,
                                                "loc": {
                                                  "start": {
                                                    "line": 34,
                                                    "column": 43
                                                  },
                                                  "end": {
                                                    "line": 34,
                                                    "column": 48
                                                  },
                                                  "identifierName": "items"
                                                },
                                                "name": "items"
                                              },
                                              "computed": false
                                            },
                                            "property": {
                                              "type": "Identifier",
                                              "start": 580,
                                              "end": 586,
                                              "loc": {
                                                "start": {
                                                  "line": 34,
                                                  "column": 49
                                                },
                                                "end": {
                                                  "line": 34,
                                                  "column": 55
                                                },
                                                "identifierName": "length"
                                              },
                                              "name": "length"
                                            },
                                            "computed": false
                                          }
                                        ]
                                      }
                                    }
                                  ],
                                  "kind": "let"
                                },
                                {
                                  "type": "VariableDeclaration",
                                  "start": 590,
                                  "end": 626,
                                  "loc": {
                                    "start": {
                                      "line": 35,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 35,
                                      "column": 38
                                    }
                                  },
                                  "declarations": [
                                    {
                                      "type": "VariableDeclarator",
                                      "start": 594,
                                      "end": 626,
                                      "loc": {
                                        "start": {
                                          "line": 35,
                                          "column": 6
                                        },
                                        "end": {
                                          "line": 35,
                                          "column": 38
                                        }
                                      },
                                      "id": {
                                        "type": "Identifier",
                                        "start": 594,
                                        "end": 600,
                                        "loc": {
                                          "start": {
                                            "line": 35,
                                            "column": 6
                                          },
                                          "end": {
                                            "line": 35,
                                            "column": 12
                                          },
                                          "identifierName": "array2"
                                        },
                                        "name": "array2"
                                      },
                                      "init": {
                                        "type": "CallExpression",
                                        "start": 601,
                                        "end": 626,
                                        "loc": {
                                          "start": {
                                            "line": 35,
                                            "column": 13
                                          },
                                          "end": {
                                            "line": 35,
                                            "column": 38
                                          }
                                        },
                                        "callee": {
                                          "type": "MemberExpression",
                                          "start": 601,
                                          "end": 617,
                                          "loc": {
                                            "start": {
                                              "line": 35,
                                              "column": 13
                                            },
                                            "end": {
                                              "line": 35,
                                              "column": 29
                                            }
                                          },
                                          "object": {
                                            "type": "MemberExpression",
                                            "start": 601,
                                            "end": 611,
                                            "loc": {
                                              "start": {
                                                "line": 35,
                                                "column": 13
                                              },
                                              "end": {
                                                "line": 35,
                                                "column": 23
                                              }
                                            },
                                            "object": {
                                              "type": "ThisExpression",
                                              "start": 601,
                                              "end": 605,
                                              "loc": {
                                                "start": {
                                                  "line": 35,
                                                  "column": 13
                                                },
                                                "end": {
                                                  "line": 35,
                                                  "column": 17
                                                }
                                              }
                                            },
                                            "property": {
                                              "type": "Identifier",
                                              "start": 606,
                                              "end": 611,
                                              "loc": {
                                                "start": {
                                                  "line": 35,
                                                  "column": 18
                                                },
                                                "end": {
                                                  "line": 35,
                                                  "column": 23
                                                },
                                                "identifierName": "items"
                                              },
                                              "name": "items"
                                            },
                                            "computed": false
                                          },
                                          "property": {
                                            "type": "Identifier",
                                            "start": 612,
                                            "end": 617,
                                            "loc": {
                                              "start": {
                                                "line": 35,
                                                "column": 24
                                              },
                                              "end": {
                                                "line": 35,
                                                "column": 29
                                              },
                                              "identifierName": "slice"
                                            },
                                            "name": "slice"
                                          },
                                          "computed": false
                                        },
                                        "arguments": [
                                          {
                                            "type": "NumericLiteral",
                                            "start": 618,
                                            "end": 619,
                                            "loc": {
                                              "start": {
                                                "line": 35,
                                                "column": 30
                                              },
                                              "end": {
                                                "line": 35,
                                                "column": 31
                                              }
                                            },
                                            "extra": {
                                              "rawValue": 0,
                                              "raw": "0"
                                            },
                                            "value": 0
                                          },
                                          {
                                            "type": "Identifier",
                                            "start": 620,
                                            "end": 625,
                                            "loc": {
                                              "start": {
                                                "line": 35,
                                                "column": 32
                                              },
                                              "end": {
                                                "line": 35,
                                                "column": 37
                                              },
                                              "identifierName": "index"
                                            },
                                            "name": "index"
                                          }
                                        ]
                                      }
                                    }
                                  ],
                                  "kind": "let"
                                },
                                {
                                  "type": "ForStatement",
                                  "start": 630,
                                  "end": 700,
                                  "loc": {
                                    "start": {
                                      "line": 37,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 40,
                                      "column": 3
                                    }
                                  },
                                  "init": {
                                    "type": "VariableDeclaration",
                                    "start": 634,
                                    "end": 641,
                                    "loc": {
                                      "start": {
                                        "line": 37,
                                        "column": 6
                                      },
                                      "end": {
                                        "line": 37,
                                        "column": 13
                                      }
                                    },
                                    "declarations": [
                                      {
                                        "type": "VariableDeclarator",
                                        "start": 638,
                                        "end": 641,
                                        "loc": {
                                          "start": {
                                            "line": 37,
                                            "column": 10
                                          },
                                          "end": {
                                            "line": 37,
                                            "column": 13
                                          }
                                        },
                                        "id": {
                                          "type": "Identifier",
                                          "start": 638,
                                          "end": 639,
                                          "loc": {
                                            "start": {
                                              "line": 37,
                                              "column": 10
                                            },
                                            "end": {
                                              "line": 37,
                                              "column": 11
                                            },
                                            "identifierName": "i"
                                          },
                                          "name": "i"
                                        },
                                        "init": {
                                          "type": "NumericLiteral",
                                          "start": 640,
                                          "end": 641,
                                          "loc": {
                                            "start": {
                                              "line": 37,
                                              "column": 12
                                            },
                                            "end": {
                                              "line": 37,
                                              "column": 13
                                            }
                                          },
                                          "extra": {
                                            "rawValue": 0,
                                            "raw": "0"
                                          },
                                          "value": 0
                                        }
                                      }
                                    ],
                                    "kind": "let"
                                  },
                                  "test": {
                                    "type": "BinaryExpression",
                                    "start": 642,
                                    "end": 657,
                                    "loc": {
                                      "start": {
                                        "line": 37,
                                        "column": 14
                                      },
                                      "end": {
                                        "line": 37,
                                        "column": 29
                                      }
                                    },
                                    "left": {
                                      "type": "Identifier",
                                      "start": 642,
                                      "end": 643,
                                      "loc": {
                                        "start": {
                                          "line": 37,
                                          "column": 14
                                        },
                                        "end": {
                                          "line": 37,
                                          "column": 15
                                        },
                                        "identifierName": "i"
                                      },
                                      "name": "i"
                                    },
                                    "operator": "<",
                                    "right": {
                                      "type": "MemberExpression",
                                      "start": 644,
                                      "end": 657,
                                      "loc": {
                                        "start": {
                                          "line": 37,
                                          "column": 16
                                        },
                                        "end": {
                                          "line": 37,
                                          "column": 29
                                        }
                                      },
                                      "object": {
                                        "type": "Identifier",
                                        "start": 644,
                                        "end": 650,
                                        "loc": {
                                          "start": {
                                            "line": 37,
                                            "column": 16
                                          },
                                          "end": {
                                            "line": 37,
                                            "column": 22
                                          },
                                          "identifierName": "array1"
                                        },
                                        "name": "array1"
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "start": 651,
                                        "end": 657,
                                        "loc": {
                                          "start": {
                                            "line": 37,
                                            "column": 23
                                          },
                                          "end": {
                                            "line": 37,
                                            "column": 29
                                          },
                                          "identifierName": "length"
                                        },
                                        "name": "length"
                                      },
                                      "computed": false
                                    }
                                  },
                                  "update": {
                                    "type": "UpdateExpression",
                                    "start": 658,
                                    "end": 661,
                                    "loc": {
                                      "start": {
                                        "line": 37,
                                        "column": 30
                                      },
                                      "end": {
                                        "line": 37,
                                        "column": 33
                                      }
                                    },
                                    "operator": "++",
                                    "prefix": false,
                                    "argument": {
                                      "type": "Identifier",
                                      "start": 658,
                                      "end": 659,
                                      "loc": {
                                        "start": {
                                          "line": 37,
                                          "column": 30
                                        },
                                        "end": {
                                          "line": 37,
                                          "column": 31
                                        },
                                        "identifierName": "i"
                                      },
                                      "name": "i"
                                    }
                                  },
                                  "body": {
                                    "type": "BlockStatement",
                                    "start": 665,
                                    "end": 700,
                                    "loc": {
                                      "start": {
                                        "line": 38,
                                        "column": 2
                                      },
                                      "end": {
                                        "line": 40,
                                        "column": 3
                                      }
                                    },
                                    "body": [
                                      {
                                        "type": "ExpressionStatement",
                                        "start": 673,
                                        "end": 696,
                                        "loc": {
                                          "start": {
                                            "line": 39,
                                            "column": 6
                                          },
                                          "end": {
                                            "line": 39,
                                            "column": 29
                                          }
                                        },
                                        "expression": {
                                          "type": "CallExpression",
                                          "start": 673,
                                          "end": 695,
                                          "loc": {
                                            "start": {
                                              "line": 39,
                                              "column": 6
                                            },
                                            "end": {
                                              "line": 39,
                                              "column": 28
                                            }
                                          },
                                          "callee": {
                                            "type": "MemberExpression",
                                            "start": 673,
                                            "end": 684,
                                            "loc": {
                                              "start": {
                                                "line": 39,
                                                "column": 6
                                              },
                                              "end": {
                                                "line": 39,
                                                "column": 17
                                              }
                                            },
                                            "object": {
                                              "type": "Identifier",
                                              "start": 673,
                                              "end": 679,
                                              "loc": {
                                                "start": {
                                                  "line": 39,
                                                  "column": 6
                                                },
                                                "end": {
                                                  "line": 39,
                                                  "column": 12
                                                },
                                                "identifierName": "array2"
                                              },
                                              "name": "array2"
                                            },
                                            "property": {
                                              "type": "Identifier",
                                              "start": 680,
                                              "end": 684,
                                              "loc": {
                                                "start": {
                                                  "line": 39,
                                                  "column": 13
                                                },
                                                "end": {
                                                  "line": 39,
                                                  "column": 17
                                                },
                                                "identifierName": "push"
                                              },
                                              "name": "push"
                                            },
                                            "computed": false
                                          },
                                          "arguments": [
                                            {
                                              "type": "MemberExpression",
                                              "start": 685,
                                              "end": 694,
                                              "loc": {
                                                "start": {
                                                  "line": 39,
                                                  "column": 18
                                                },
                                                "end": {
                                                  "line": 39,
                                                  "column": 27
                                                }
                                              },
                                              "object": {
                                                "type": "Identifier",
                                                "start": 685,
                                                "end": 691,
                                                "loc": {
                                                  "start": {
                                                    "line": 39,
                                                    "column": 18
                                                  },
                                                  "end": {
                                                    "line": 39,
                                                    "column": 24
                                                  },
                                                  "identifierName": "array1"
                                                },
                                                "name": "array1"
                                              },
                                              "property": {
                                                "type": "Identifier",
                                                "start": 692,
                                                "end": 693,
                                                "loc": {
                                                  "start": {
                                                    "line": 39,
                                                    "column": 25
                                                  },
                                                  "end": {
                                                    "line": 39,
                                                    "column": 26
                                                  },
                                                  "identifierName": "i"
                                                },
                                                "name": "i"
                                              },
                                              "computed": true
                                            }
                                          ]
                                        }
                                      }
                                    ],
                                    "directives": []
                                  }
                                },
                                {
                                  "type": "ExpressionStatement",
                                  "start": 703,
                                  "end": 721,
                                  "loc": {
                                    "start": {
                                      "line": 41,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 41,
                                      "column": 20
                                    }
                                  },
                                  "expression": {
                                    "type": "AssignmentExpression",
                                    "start": 703,
                                    "end": 720,
                                    "loc": {
                                      "start": {
                                        "line": 41,
                                        "column": 2
                                      },
                                      "end": {
                                        "line": 41,
                                        "column": 19
                                      }
                                    },
                                    "operator": "=",
                                    "left": {
                                      "type": "MemberExpression",
                                      "start": 703,
                                      "end": 713,
                                      "loc": {
                                        "start": {
                                          "line": 41,
                                          "column": 2
                                        },
                                        "end": {
                                          "line": 41,
                                          "column": 12
                                        }
                                      },
                                      "object": {
                                        "type": "ThisExpression",
                                        "start": 703,
                                        "end": 707,
                                        "loc": {
                                          "start": {
                                            "line": 41,
                                            "column": 2
                                          },
                                          "end": {
                                            "line": 41,
                                            "column": 6
                                          }
                                        }
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "start": 708,
                                        "end": 713,
                                        "loc": {
                                          "start": {
                                            "line": 41,
                                            "column": 7
                                          },
                                          "end": {
                                            "line": 41,
                                            "column": 12
                                          },
                                          "identifierName": "items"
                                        },
                                        "name": "items"
                                      },
                                      "computed": false
                                    },
                                    "right": {
                                      "type": "Identifier",
                                      "start": 714,
                                      "end": 720,
                                      "loc": {
                                        "start": {
                                          "line": 41,
                                          "column": 13
                                        },
                                        "end": {
                                          "line": 41,
                                          "column": 19
                                        },
                                        "identifierName": "array2"
                                      },
                                      "name": "array2"
                                    }
                                  }
                                },
                                {
                                  "type": "ReturnStatement",
                                  "start": 724,
                                  "end": 735,
                                  "loc": {
                                    "start": {
                                      "line": 42,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 42,
                                      "column": 13
                                    }
                                  },
                                  "argument": {
                                    "type": "BooleanLiteral",
                                    "start": 731,
                                    "end": 735,
                                    "loc": {
                                      "start": {
                                        "line": 42,
                                        "column": 9
                                      },
                                      "end": {
                                        "line": 42,
                                        "column": 13
                                      }
                                    },
                                    "value": true
                                  }
                                }
                              ],
                              "directives": []
                            },
                            "alternate": null
                          },
                          {
                            "type": "IfStatement",
                            "start": 749,
                            "end": 841,
                            "loc": {
                              "start": {
                                "line": 45,
                                "column": 5
                              },
                              "end": {
                                "line": 50,
                                "column": 6
                              }
                            },
                            "test": {
                              "type": "BinaryExpression",
                              "start": 752,
                              "end": 760,
                              "loc": {
                                "start": {
                                  "line": 45,
                                  "column": 8
                                },
                                "end": {
                                  "line": 45,
                                  "column": 16
                                }
                              },
                              "left": {
                                "type": "Identifier",
                                "start": 752,
                                "end": 757,
                                "loc": {
                                  "start": {
                                    "line": 45,
                                    "column": 8
                                  },
                                  "end": {
                                    "line": 45,
                                    "column": 13
                                  },
                                  "identifierName": "index"
                                },
                                "name": "index"
                              },
                              "operator": "==",
                              "right": {
                                "type": "NumericLiteral",
                                "start": 759,
                                "end": 760,
                                "loc": {
                                  "start": {
                                    "line": 45,
                                    "column": 15
                                  },
                                  "end": {
                                    "line": 45,
                                    "column": 16
                                  }
                                },
                                "extra": {
                                  "rawValue": 0,
                                  "raw": "0"
                                },
                                "value": 0
                              }
                            },
                            "consequent": {
                              "type": "BlockStatement",
                              "start": 767,
                              "end": 841,
                              "loc": {
                                "start": {
                                  "line": 46,
                                  "column": 5
                                },
                                "end": {
                                  "line": 50,
                                  "column": 6
                                }
                              },
                              "body": [
                                {
                                  "type": "ExpressionStatement",
                                  "start": 772,
                                  "end": 820,
                                  "loc": {
                                    "start": {
                                      "line": 48,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 48,
                                      "column": 50
                                    }
                                  },
                                  "expression": {
                                    "type": "AssignmentExpression",
                                    "start": 772,
                                    "end": 820,
                                    "loc": {
                                      "start": {
                                        "line": 48,
                                        "column": 2
                                      },
                                      "end": {
                                        "line": 48,
                                        "column": 50
                                      }
                                    },
                                    "operator": "=",
                                    "left": {
                                      "type": "MemberExpression",
                                      "start": 772,
                                      "end": 782,
                                      "loc": {
                                        "start": {
                                          "line": 48,
                                          "column": 2
                                        },
                                        "end": {
                                          "line": 48,
                                          "column": 12
                                        }
                                      },
                                      "object": {
                                        "type": "ThisExpression",
                                        "start": 772,
                                        "end": 776,
                                        "loc": {
                                          "start": {
                                            "line": 48,
                                            "column": 2
                                          },
                                          "end": {
                                            "line": 48,
                                            "column": 6
                                          }
                                        }
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "start": 777,
                                        "end": 782,
                                        "loc": {
                                          "start": {
                                            "line": 48,
                                            "column": 7
                                          },
                                          "end": {
                                            "line": 48,
                                            "column": 12
                                          },
                                          "identifierName": "items"
                                        },
                                        "name": "items"
                                      },
                                      "computed": false
                                    },
                                    "right": {
                                      "type": "CallExpression",
                                      "start": 783,
                                      "end": 820,
                                      "loc": {
                                        "start": {
                                          "line": 48,
                                          "column": 13
                                        },
                                        "end": {
                                          "line": 48,
                                          "column": 50
                                        }
                                      },
                                      "callee": {
                                        "type": "MemberExpression",
                                        "start": 783,
                                        "end": 799,
                                        "loc": {
                                          "start": {
                                            "line": 48,
                                            "column": 13
                                          },
                                          "end": {
                                            "line": 48,
                                            "column": 29
                                          }
                                        },
                                        "object": {
                                          "type": "MemberExpression",
                                          "start": 783,
                                          "end": 793,
                                          "loc": {
                                            "start": {
                                              "line": 48,
                                              "column": 13
                                            },
                                            "end": {
                                              "line": 48,
                                              "column": 23
                                            }
                                          },
                                          "object": {
                                            "type": "ThisExpression",
                                            "start": 783,
                                            "end": 787,
                                            "loc": {
                                              "start": {
                                                "line": 48,
                                                "column": 13
                                              },
                                              "end": {
                                                "line": 48,
                                                "column": 17
                                              }
                                            }
                                          },
                                          "property": {
                                            "type": "Identifier",
                                            "start": 788,
                                            "end": 793,
                                            "loc": {
                                              "start": {
                                                "line": 48,
                                                "column": 18
                                              },
                                              "end": {
                                                "line": 48,
                                                "column": 23
                                              },
                                              "identifierName": "items"
                                            },
                                            "name": "items"
                                          },
                                          "computed": false
                                        },
                                        "property": {
                                          "type": "Identifier",
                                          "start": 794,
                                          "end": 799,
                                          "loc": {
                                            "start": {
                                              "line": 48,
                                              "column": 24
                                            },
                                            "end": {
                                              "line": 48,
                                              "column": 29
                                            },
                                            "identifierName": "slice"
                                          },
                                          "name": "slice"
                                        },
                                        "computed": false
                                      },
                                      "arguments": [
                                        {
                                          "type": "NumericLiteral",
                                          "start": 800,
                                          "end": 801,
                                          "loc": {
                                            "start": {
                                              "line": 48,
                                              "column": 30
                                            },
                                            "end": {
                                              "line": 48,
                                              "column": 31
                                            }
                                          },
                                          "extra": {
                                            "rawValue": 1,
                                            "raw": "1"
                                          },
                                          "value": 1
                                        },
                                        {
                                          "type": "MemberExpression",
                                          "start": 802,
                                          "end": 819,
                                          "loc": {
                                            "start": {
                                              "line": 48,
                                              "column": 32
                                            },
                                            "end": {
                                              "line": 48,
                                              "column": 49
                                            }
                                          },
                                          "object": {
                                            "type": "MemberExpression",
                                            "start": 802,
                                            "end": 812,
                                            "loc": {
                                              "start": {
                                                "line": 48,
                                                "column": 32
                                              },
                                              "end": {
                                                "line": 48,
                                                "column": 42
                                              }
                                            },
                                            "object": {
                                              "type": "ThisExpression",
                                              "start": 802,
                                              "end": 806,
                                              "loc": {
                                                "start": {
                                                  "line": 48,
                                                  "column": 32
                                                },
                                                "end": {
                                                  "line": 48,
                                                  "column": 36
                                                }
                                              }
                                            },
                                            "property": {
                                              "type": "Identifier",
                                              "start": 807,
                                              "end": 812,
                                              "loc": {
                                                "start": {
                                                  "line": 48,
                                                  "column": 37
                                                },
                                                "end": {
                                                  "line": 48,
                                                  "column": 42
                                                },
                                                "identifierName": "items"
                                              },
                                              "name": "items"
                                            },
                                            "computed": false
                                          },
                                          "property": {
                                            "type": "Identifier",
                                            "start": 813,
                                            "end": 819,
                                            "loc": {
                                              "start": {
                                                "line": 48,
                                                "column": 43
                                              },
                                              "end": {
                                                "line": 48,
                                                "column": 49
                                              },
                                              "identifierName": "length"
                                            },
                                            "name": "length"
                                          },
                                          "computed": false
                                        }
                                      ]
                                    }
                                  }
                                },
                                {
                                  "type": "ReturnStatement",
                                  "start": 823,
                                  "end": 834,
                                  "loc": {
                                    "start": {
                                      "line": 49,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 49,
                                      "column": 13
                                    }
                                  },
                                  "argument": {
                                    "type": "BooleanLiteral",
                                    "start": 830,
                                    "end": 834,
                                    "loc": {
                                      "start": {
                                        "line": 49,
                                        "column": 9
                                      },
                                      "end": {
                                        "line": 49,
                                        "column": 13
                                      }
                                    },
                                    "value": true
                                  }
                                }
                              ],
                              "directives": []
                            },
                            "alternate": null
                          },
                          {
                            "type": "IfStatement",
                            "start": 847,
                            "end": 958,
                            "loc": {
                              "start": {
                                "line": 51,
                                "column": 5
                              },
                              "end": {
                                "line": 55,
                                "column": 6
                              }
                            },
                            "test": {
                              "type": "BinaryExpression",
                              "start": 850,
                              "end": 876,
                              "loc": {
                                "start": {
                                  "line": 51,
                                  "column": 8
                                },
                                "end": {
                                  "line": 51,
                                  "column": 34
                                }
                              },
                              "left": {
                                "type": "Identifier",
                                "start": 850,
                                "end": 855,
                                "loc": {
                                  "start": {
                                    "line": 51,
                                    "column": 8
                                  },
                                  "end": {
                                    "line": 51,
                                    "column": 13
                                  },
                                  "identifierName": "index"
                                },
                                "name": "index"
                              },
                              "operator": "==",
                              "right": {
                                "type": "BinaryExpression",
                                "start": 857,
                                "end": 876,
                                "loc": {
                                  "start": {
                                    "line": 51,
                                    "column": 15
                                  },
                                  "end": {
                                    "line": 51,
                                    "column": 34
                                  }
                                },
                                "left": {
                                  "type": "MemberExpression",
                                  "start": 857,
                                  "end": 874,
                                  "loc": {
                                    "start": {
                                      "line": 51,
                                      "column": 15
                                    },
                                    "end": {
                                      "line": 51,
                                      "column": 32
                                    }
                                  },
                                  "object": {
                                    "type": "MemberExpression",
                                    "start": 857,
                                    "end": 867,
                                    "loc": {
                                      "start": {
                                        "line": 51,
                                        "column": 15
                                      },
                                      "end": {
                                        "line": 51,
                                        "column": 25
                                      }
                                    },
                                    "object": {
                                      "type": "ThisExpression",
                                      "start": 857,
                                      "end": 861,
                                      "loc": {
                                        "start": {
                                          "line": 51,
                                          "column": 15
                                        },
                                        "end": {
                                          "line": 51,
                                          "column": 19
                                        }
                                      }
                                    },
                                    "property": {
                                      "type": "Identifier",
                                      "start": 862,
                                      "end": 867,
                                      "loc": {
                                        "start": {
                                          "line": 51,
                                          "column": 20
                                        },
                                        "end": {
                                          "line": 51,
                                          "column": 25
                                        },
                                        "identifierName": "items"
                                      },
                                      "name": "items"
                                    },
                                    "computed": false
                                  },
                                  "property": {
                                    "type": "Identifier",
                                    "start": 868,
                                    "end": 874,
                                    "loc": {
                                      "start": {
                                        "line": 51,
                                        "column": 26
                                      },
                                      "end": {
                                        "line": 51,
                                        "column": 32
                                      },
                                      "identifierName": "length"
                                    },
                                    "name": "length"
                                  },
                                  "computed": false
                                },
                                "operator": "-",
                                "right": {
                                  "type": "NumericLiteral",
                                  "start": 875,
                                  "end": 876,
                                  "loc": {
                                    "start": {
                                      "line": 51,
                                      "column": 33
                                    },
                                    "end": {
                                      "line": 51,
                                      "column": 34
                                    }
                                  },
                                  "extra": {
                                    "rawValue": 1,
                                    "raw": "1"
                                  },
                                  "value": 1
                                }
                              }
                            },
                            "consequent": {
                              "type": "BlockStatement",
                              "start": 883,
                              "end": 958,
                              "loc": {
                                "start": {
                                  "line": 52,
                                  "column": 5
                                },
                                "end": {
                                  "line": 55,
                                  "column": 6
                                }
                              },
                              "body": [
                                {
                                  "type": "ExpressionStatement",
                                  "start": 887,
                                  "end": 937,
                                  "loc": {
                                    "start": {
                                      "line": 53,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 53,
                                      "column": 52
                                    }
                                  },
                                  "expression": {
                                    "type": "AssignmentExpression",
                                    "start": 887,
                                    "end": 937,
                                    "loc": {
                                      "start": {
                                        "line": 53,
                                        "column": 2
                                      },
                                      "end": {
                                        "line": 53,
                                        "column": 52
                                      }
                                    },
                                    "operator": "=",
                                    "left": {
                                      "type": "MemberExpression",
                                      "start": 887,
                                      "end": 897,
                                      "loc": {
                                        "start": {
                                          "line": 53,
                                          "column": 2
                                        },
                                        "end": {
                                          "line": 53,
                                          "column": 12
                                        }
                                      },
                                      "object": {
                                        "type": "ThisExpression",
                                        "start": 887,
                                        "end": 891,
                                        "loc": {
                                          "start": {
                                            "line": 53,
                                            "column": 2
                                          },
                                          "end": {
                                            "line": 53,
                                            "column": 6
                                          }
                                        }
                                      },
                                      "property": {
                                        "type": "Identifier",
                                        "start": 892,
                                        "end": 897,
                                        "loc": {
                                          "start": {
                                            "line": 53,
                                            "column": 7
                                          },
                                          "end": {
                                            "line": 53,
                                            "column": 12
                                          },
                                          "identifierName": "items"
                                        },
                                        "name": "items"
                                      },
                                      "computed": false
                                    },
                                    "right": {
                                      "type": "CallExpression",
                                      "start": 898,
                                      "end": 937,
                                      "loc": {
                                        "start": {
                                          "line": 53,
                                          "column": 13
                                        },
                                        "end": {
                                          "line": 53,
                                          "column": 52
                                        }
                                      },
                                      "callee": {
                                        "type": "MemberExpression",
                                        "start": 898,
                                        "end": 914,
                                        "loc": {
                                          "start": {
                                            "line": 53,
                                            "column": 13
                                          },
                                          "end": {
                                            "line": 53,
                                            "column": 29
                                          }
                                        },
                                        "object": {
                                          "type": "MemberExpression",
                                          "start": 898,
                                          "end": 908,
                                          "loc": {
                                            "start": {
                                              "line": 53,
                                              "column": 13
                                            },
                                            "end": {
                                              "line": 53,
                                              "column": 23
                                            }
                                          },
                                          "object": {
                                            "type": "ThisExpression",
                                            "start": 898,
                                            "end": 902,
                                            "loc": {
                                              "start": {
                                                "line": 53,
                                                "column": 13
                                              },
                                              "end": {
                                                "line": 53,
                                                "column": 17
                                              }
                                            }
                                          },
                                          "property": {
                                            "type": "Identifier",
                                            "start": 903,
                                            "end": 908,
                                            "loc": {
                                              "start": {
                                                "line": 53,
                                                "column": 18
                                              },
                                              "end": {
                                                "line": 53,
                                                "column": 23
                                              },
                                              "identifierName": "items"
                                            },
                                            "name": "items"
                                          },
                                          "computed": false
                                        },
                                        "property": {
                                          "type": "Identifier",
                                          "start": 909,
                                          "end": 914,
                                          "loc": {
                                            "start": {
                                              "line": 53,
                                              "column": 24
                                            },
                                            "end": {
                                              "line": 53,
                                              "column": 29
                                            },
                                            "identifierName": "slice"
                                          },
                                          "name": "slice"
                                        },
                                        "computed": false
                                      },
                                      "arguments": [
                                        {
                                          "type": "NumericLiteral",
                                          "start": 915,
                                          "end": 916,
                                          "loc": {
                                            "start": {
                                              "line": 53,
                                              "column": 30
                                            },
                                            "end": {
                                              "line": 53,
                                              "column": 31
                                            }
                                          },
                                          "extra": {
                                            "rawValue": 0,
                                            "raw": "0"
                                          },
                                          "value": 0
                                        },
                                        {
                                          "type": "BinaryExpression",
                                          "start": 917,
                                          "end": 936,
                                          "loc": {
                                            "start": {
                                              "line": 53,
                                              "column": 32
                                            },
                                            "end": {
                                              "line": 53,
                                              "column": 51
                                            }
                                          },
                                          "left": {
                                            "type": "MemberExpression",
                                            "start": 917,
                                            "end": 934,
                                            "loc": {
                                              "start": {
                                                "line": 53,
                                                "column": 32
                                              },
                                              "end": {
                                                "line": 53,
                                                "column": 49
                                              }
                                            },
                                            "object": {
                                              "type": "MemberExpression",
                                              "start": 917,
                                              "end": 927,
                                              "loc": {
                                                "start": {
                                                  "line": 53,
                                                  "column": 32
                                                },
                                                "end": {
                                                  "line": 53,
                                                  "column": 42
                                                }
                                              },
                                              "object": {
                                                "type": "ThisExpression",
                                                "start": 917,
                                                "end": 921,
                                                "loc": {
                                                  "start": {
                                                    "line": 53,
                                                    "column": 32
                                                  },
                                                  "end": {
                                                    "line": 53,
                                                    "column": 36
                                                  }
                                                }
                                              },
                                              "property": {
                                                "type": "Identifier",
                                                "start": 922,
                                                "end": 927,
                                                "loc": {
                                                  "start": {
                                                    "line": 53,
                                                    "column": 37
                                                  },
                                                  "end": {
                                                    "line": 53,
                                                    "column": 42
                                                  },
                                                  "identifierName": "items"
                                                },
                                                "name": "items"
                                              },
                                              "computed": false
                                            },
                                            "property": {
                                              "type": "Identifier",
                                              "start": 928,
                                              "end": 934,
                                              "loc": {
                                                "start": {
                                                  "line": 53,
                                                  "column": 43
                                                },
                                                "end": {
                                                  "line": 53,
                                                  "column": 49
                                                },
                                                "identifierName": "length"
                                              },
                                              "name": "length"
                                            },
                                            "computed": false
                                          },
                                          "operator": "-",
                                          "right": {
                                            "type": "NumericLiteral",
                                            "start": 935,
                                            "end": 936,
                                            "loc": {
                                              "start": {
                                                "line": 53,
                                                "column": 50
                                              },
                                              "end": {
                                                "line": 53,
                                                "column": 51
                                              }
                                            },
                                            "extra": {
                                              "rawValue": 1,
                                              "raw": "1"
                                            },
                                            "value": 1
                                          }
                                        }
                                      ]
                                    }
                                  }
                                },
                                {
                                  "type": "ReturnStatement",
                                  "start": 940,
                                  "end": 951,
                                  "loc": {
                                    "start": {
                                      "line": 54,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 54,
                                      "column": 13
                                    }
                                  },
                                  "argument": {
                                    "type": "BooleanLiteral",
                                    "start": 947,
                                    "end": 951,
                                    "loc": {
                                      "start": {
                                        "line": 54,
                                        "column": 9
                                      },
                                      "end": {
                                        "line": 54,
                                        "column": 13
                                      }
                                    },
                                    "value": true
                                  }
                                }
                              ],
                              "directives": []
                            },
                            "alternate": null
                          }
                        ],
                        "directives": []
                      },
                      "alternate": null
                    },
                    {
                      "type": "ReturnStatement",
                      "start": 963,
                      "end": 974,
                      "loc": {
                        "start": {
                          "line": 57,
                          "column": 1
                        },
                        "end": {
                          "line": 57,
                          "column": 12
                        }
                      },
                      "argument": {
                        "type": "BooleanLiteral",
                        "start": 970,
                        "end": 974,
                        "loc": {
                          "start": {
                            "line": 57,
                            "column": 8
                          },
                          "end": {
                            "line": 57,
                            "column": 12
                          }
                        },
                        "value": true
                      }
                    }
                  ],
                  "directives": []
                }
              },
              {
                "type": "ClassMethod",
                "start": 991,
                "end": 1146,
                "loc": {
                  "start": {
                    "line": 60,
                    "column": 4
                  },
                  "end": {
                    "line": 70,
                    "column": 5
                  }
                },
                "static": false,
                "computed": false,
                "key": {
                  "type": "Identifier",
                  "start": 991,
                  "end": 999,
                  "loc": {
                    "start": {
                      "line": 60,
                      "column": 4
                    },
                    "end": {
                      "line": 60,
                      "column": 12
                    },
                    "identifierName": "contains"
                  },
                  "name": "contains"
                },
                "kind": "method",
                "id": null,
                "generator": false,
                "expression": false,
                "async": false,
                "params": [
                  {
                    "type": "Identifier",
                    "start": 1000,
                    "end": 1004,
                    "loc": {
                      "start": {
                        "line": 60,
                        "column": 13
                      },
                      "end": {
                        "line": 60,
                        "column": 17
                      },
                      "identifierName": "item"
                    },
                    "name": "item"
                  }
                ],
                "body": {
                  "type": "BlockStatement",
                  "start": 1010,
                  "end": 1146,
                  "loc": {
                    "start": {
                      "line": 61,
                      "column": 4
                    },
                    "end": {
                      "line": 70,
                      "column": 5
                    }
                  },
                  "body": [
                    {
                      "type": "ForStatement",
                      "start": 1013,
                      "end": 1125,
                      "loc": {
                        "start": {
                          "line": 62,
                          "column": 1
                        },
                        "end": {
                          "line": 68,
                          "column": 2
                        }
                      },
                      "init": {
                        "type": "VariableDeclaration",
                        "start": 1017,
                        "end": 1024,
                        "loc": {
                          "start": {
                            "line": 62,
                            "column": 5
                          },
                          "end": {
                            "line": 62,
                            "column": 12
                          }
                        },
                        "declarations": [
                          {
                            "type": "VariableDeclarator",
                            "start": 1021,
                            "end": 1024,
                            "loc": {
                              "start": {
                                "line": 62,
                                "column": 9
                              },
                              "end": {
                                "line": 62,
                                "column": 12
                              }
                            },
                            "id": {
                              "type": "Identifier",
                              "start": 1021,
                              "end": 1022,
                              "loc": {
                                "start": {
                                  "line": 62,
                                  "column": 9
                                },
                                "end": {
                                  "line": 62,
                                  "column": 10
                                },
                                "identifierName": "i"
                              },
                              "name": "i"
                            },
                            "init": {
                              "type": "NumericLiteral",
                              "start": 1023,
                              "end": 1024,
                              "loc": {
                                "start": {
                                  "line": 62,
                                  "column": 11
                                },
                                "end": {
                                  "line": 62,
                                  "column": 12
                                }
                              },
                              "extra": {
                                "rawValue": 0,
                                "raw": "0"
                              },
                              "value": 0
                            }
                          }
                        ],
                        "kind": "let"
                      },
                      "test": {
                        "type": "BinaryExpression",
                        "start": 1025,
                        "end": 1044,
                        "loc": {
                          "start": {
                            "line": 62,
                            "column": 13
                          },
                          "end": {
                            "line": 62,
                            "column": 32
                          }
                        },
                        "left": {
                          "type": "Identifier",
                          "start": 1025,
                          "end": 1026,
                          "loc": {
                            "start": {
                              "line": 62,
                              "column": 13
                            },
                            "end": {
                              "line": 62,
                              "column": 14
                            },
                            "identifierName": "i"
                          },
                          "name": "i"
                        },
                        "operator": "<",
                        "right": {
                          "type": "MemberExpression",
                          "start": 1027,
                          "end": 1044,
                          "loc": {
                            "start": {
                              "line": 62,
                              "column": 15
                            },
                            "end": {
                              "line": 62,
                              "column": 32
                            }
                          },
                          "object": {
                            "type": "MemberExpression",
                            "start": 1027,
                            "end": 1037,
                            "loc": {
                              "start": {
                                "line": 62,
                                "column": 15
                              },
                              "end": {
                                "line": 62,
                                "column": 25
                              }
                            },
                            "object": {
                              "type": "ThisExpression",
                              "start": 1027,
                              "end": 1031,
                              "loc": {
                                "start": {
                                  "line": 62,
                                  "column": 15
                                },
                                "end": {
                                  "line": 62,
                                  "column": 19
                                }
                              }
                            },
                            "property": {
                              "type": "Identifier",
                              "start": 1032,
                              "end": 1037,
                              "loc": {
                                "start": {
                                  "line": 62,
                                  "column": 20
                                },
                                "end": {
                                  "line": 62,
                                  "column": 25
                                },
                                "identifierName": "items"
                              },
                              "name": "items"
                            },
                            "computed": false
                          },
                          "property": {
                            "type": "Identifier",
                            "start": 1038,
                            "end": 1044,
                            "loc": {
                              "start": {
                                "line": 62,
                                "column": 26
                              },
                              "end": {
                                "line": 62,
                                "column": 32
                              },
                              "identifierName": "length"
                            },
                            "name": "length"
                          },
                          "computed": false
                        }
                      },
                      "update": {
                        "type": "UpdateExpression",
                        "start": 1045,
                        "end": 1048,
                        "loc": {
                          "start": {
                            "line": 62,
                            "column": 33
                          },
                          "end": {
                            "line": 62,
                            "column": 36
                          }
                        },
                        "operator": "++",
                        "prefix": false,
                        "argument": {
                          "type": "Identifier",
                          "start": 1045,
                          "end": 1046,
                          "loc": {
                            "start": {
                              "line": 62,
                              "column": 33
                            },
                            "end": {
                              "line": 62,
                              "column": 34
                            },
                            "identifierName": "i"
                          },
                          "name": "i"
                        }
                      },
                      "body": {
                        "type": "BlockStatement",
                        "start": 1051,
                        "end": 1125,
                        "loc": {
                          "start": {
                            "line": 63,
                            "column": 1
                          },
                          "end": {
                            "line": 68,
                            "column": 2
                          }
                        },
                        "body": [
                          {
                            "type": "IfStatement",
                            "start": 1058,
                            "end": 1122,
                            "loc": {
                              "start": {
                                "line": 64,
                                "column": 5
                              },
                              "end": {
                                "line": 67,
                                "column": 6
                              }
                            },
                            "test": {
                              "type": "CallExpression",
                              "start": 1061,
                              "end": 1093,
                              "loc": {
                                "start": {
                                  "line": 64,
                                  "column": 8
                                },
                                "end": {
                                  "line": 64,
                                  "column": 40
                                }
                              },
                              "callee": {
                                "type": "MemberExpression",
                                "start": 1061,
                                "end": 1073,
                                "loc": {
                                  "start": {
                                    "line": 64,
                                    "column": 8
                                  },
                                  "end": {
                                    "line": 64,
                                    "column": 20
                                  }
                                },
                                "object": {
                                  "type": "ThisExpression",
                                  "start": 1061,
                                  "end": 1065,
                                  "loc": {
                                    "start": {
                                      "line": 64,
                                      "column": 8
                                    },
                                    "end": {
                                      "line": 64,
                                      "column": 12
                                    }
                                  }
                                },
                                "property": {
                                  "type": "Identifier",
                                  "start": 1066,
                                  "end": 1073,
                                  "loc": {
                                    "start": {
                                      "line": 64,
                                      "column": 13
                                    },
                                    "end": {
                                      "line": 64,
                                      "column": 20
                                    },
                                    "identifierName": "isEqual"
                                  },
                                  "name": "isEqual"
                                },
                                "computed": false
                              },
                              "arguments": [
                                {
                                  "type": "MemberExpression",
                                  "start": 1074,
                                  "end": 1087,
                                  "loc": {
                                    "start": {
                                      "line": 64,
                                      "column": 21
                                    },
                                    "end": {
                                      "line": 64,
                                      "column": 34
                                    }
                                  },
                                  "object": {
                                    "type": "MemberExpression",
                                    "start": 1074,
                                    "end": 1084,
                                    "loc": {
                                      "start": {
                                        "line": 64,
                                        "column": 21
                                      },
                                      "end": {
                                        "line": 64,
                                        "column": 31
                                      }
                                    },
                                    "object": {
                                      "type": "ThisExpression",
                                      "start": 1074,
                                      "end": 1078,
                                      "loc": {
                                        "start": {
                                          "line": 64,
                                          "column": 21
                                        },
                                        "end": {
                                          "line": 64,
                                          "column": 25
                                        }
                                      }
                                    },
                                    "property": {
                                      "type": "Identifier",
                                      "start": 1079,
                                      "end": 1084,
                                      "loc": {
                                        "start": {
                                          "line": 64,
                                          "column": 26
                                        },
                                        "end": {
                                          "line": 64,
                                          "column": 31
                                        },
                                        "identifierName": "items"
                                      },
                                      "name": "items"
                                    },
                                    "computed": false
                                  },
                                  "property": {
                                    "type": "Identifier",
                                    "start": 1085,
                                    "end": 1086,
                                    "loc": {
                                      "start": {
                                        "line": 64,
                                        "column": 32
                                      },
                                      "end": {
                                        "line": 64,
                                        "column": 33
                                      },
                                      "identifierName": "i"
                                    },
                                    "name": "i"
                                  },
                                  "computed": true
                                },
                                {
                                  "type": "Identifier",
                                  "start": 1088,
                                  "end": 1092,
                                  "loc": {
                                    "start": {
                                      "line": 64,
                                      "column": 35
                                    },
                                    "end": {
                                      "line": 64,
                                      "column": 39
                                    },
                                    "identifierName": "item"
                                  },
                                  "name": "item"
                                }
                              ]
                            },
                            "consequent": {
                              "type": "BlockStatement",
                              "start": 1100,
                              "end": 1122,
                              "loc": {
                                "start": {
                                  "line": 65,
                                  "column": 5
                                },
                                "end": {
                                  "line": 67,
                                  "column": 6
                                }
                              },
                              "body": [
                                {
                                  "type": "ReturnStatement",
                                  "start": 1104,
                                  "end": 1115,
                                  "loc": {
                                    "start": {
                                      "line": 66,
                                      "column": 2
                                    },
                                    "end": {
                                      "line": 66,
                                      "column": 13
                                    }
                                  },
                                  "argument": {
                                    "type": "BooleanLiteral",
                                    "start": 1111,
                                    "end": 1115,
                                    "loc": {
                                      "start": {
                                        "line": 66,
                                        "column": 9
                                      },
                                      "end": {
                                        "line": 66,
                                        "column": 13
                                      }
                                    },
                                    "value": true
                                  }
                                }
                              ],
                              "directives": []
                            },
                            "alternate": null
                          }
                        ],
                        "directives": []
                      }
                    },
                    {
                      "type": "ReturnStatement",
                      "start": 1127,
                      "end": 1140,
                      "loc": {
                        "start": {
                          "line": 69,
                          "column": 1
                        },
                        "end": {
                          "line": 69,
                          "column": 14
                        }
                      },
                      "argument": {
                        "type": "BooleanLiteral",
                        "start": 1134,
                        "end": 1139,
                        "loc": {
                          "start": {
                            "line": 69,
                            "column": 8
                          },
                          "end": {
                            "line": 69,
                            "column": 13
                          }
                        },
                        "value": false
                      }
                    }
                  ],
                  "directives": []
                }
              },
              {
                "type": "ClassMethod",
                "start": 1151,
                "end": 1201,
                "loc": {
                  "start": {
                    "line": 71,
                    "column": 4
                  },
                  "end": {
                    "line": 74,
                    "column": 5
                  }
                },
                "static": false,
                "computed": false,
                "key": {
                  "type": "Identifier",
                  "start": 1151,
                  "end": 1159,
                  "loc": {
                    "start": {
                      "line": 71,
                      "column": 4
                    },
                    "end": {
                      "line": 71,
                      "column": 12
                    },
                    "identifierName": "getItems"
                  },
                  "name": "getItems"
                },
                "kind": "method",
                "id": null,
                "generator": false,
                "expression": false,
                "async": false,
                "params": [],
                "body": {
                  "type": "BlockStatement",
                  "start": 1166,
                  "end": 1201,
                  "loc": {
                    "start": {
                      "line": 72,
                      "column": 4
                    },
                    "end": {
                      "line": 74,
                      "column": 5
                    }
                  },
                  "body": [
                    {
                      "type": "ReturnStatement",
                      "start": 1169,
                      "end": 1195,
                      "loc": {
                        "start": {
                          "line": 73,
                          "column": 1
                        },
                        "end": {
                          "line": 73,
                          "column": 27
                        }
                      },
                      "argument": {
                        "type": "CallExpression",
                        "start": 1176,
                        "end": 1194,
                        "loc": {
                          "start": {
                            "line": 73,
                            "column": 8
                          },
                          "end": {
                            "line": 73,
                            "column": 26
                          }
                        },
                        "callee": {
                          "type": "MemberExpression",
                          "start": 1176,
                          "end": 1192,
                          "loc": {
                            "start": {
                              "line": 73,
                              "column": 8
                            },
                            "end": {
                              "line": 73,
                              "column": 24
                            }
                          },
                          "object": {
                            "type": "MemberExpression",
                            "start": 1176,
                            "end": 1186,
                            "loc": {
                              "start": {
                                "line": 73,
                                "column": 8
                              },
                              "end": {
                                "line": 73,
                                "column": 18
                              }
                            },
                            "object": {
                              "type": "ThisExpression",
                              "start": 1176,
                              "end": 1180,
                              "loc": {
                                "start": {
                                  "line": 73,
                                  "column": 8
                                },
                                "end": {
                                  "line": 73,
                                  "column": 12
                                }
                              }
                            },
                            "property": {
                              "type": "Identifier",
                              "start": 1181,
                              "end": 1186,
                              "loc": {
                                "start": {
                                  "line": 73,
                                  "column": 13
                                },
                                "end": {
                                  "line": 73,
                                  "column": 18
                                },
                                "identifierName": "items"
                              },
                              "name": "items"
                            },
                            "computed": false
                          },
                          "property": {
                            "type": "Identifier",
                            "start": 1187,
                            "end": 1192,
                            "loc": {
                              "start": {
                                "line": 73,
                                "column": 19
                              },
                              "end": {
                                "line": 73,
                                "column": 24
                              },
                              "identifierName": "slice"
                            },
                            "name": "slice"
                          },
                          "computed": false
                        },
                        "arguments": []
                      }
                    }
                  ],
                  "directives": []
                }
              }
            ]
          },
          "leadingComments": [],
          "trailingComments": []
        }
      }
    ],
    "directives": []
  },
  "comments": [],
  "tokens": [
    {
      "type": {
        "label": "export",
        "keyword": "export",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "export",
      "start": 0,
      "end": 6,
      "loc": {
        "start": {
          "line": 1,
          "column": 0
        },
        "end": {
          "line": 1,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "default",
        "keyword": "default",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "default",
      "start": 7,
      "end": 14,
      "loc": {
        "start": {
          "line": 1,
          "column": 7
        },
        "end": {
          "line": 1,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "class",
        "keyword": "class",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "class",
      "start": 15,
      "end": 20,
      "loc": {
        "start": {
          "line": 1,
          "column": 15
        },
        "end": {
          "line": 1,
          "column": 20
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "Set",
      "start": 21,
      "end": 24,
      "loc": {
        "start": {
          "line": 1,
          "column": 21
        },
        "end": {
          "line": 1,
          "column": 24
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 25,
      "end": 26,
      "loc": {
        "start": {
          "line": 1,
          "column": 25
        },
        "end": {
          "line": 1,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "constructor",
      "start": 31,
      "end": 42,
      "loc": {
        "start": {
          "line": 2,
          "column": 4
        },
        "end": {
          "line": 2,
          "column": 15
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 42,
      "end": 43,
      "loc": {
        "start": {
          "line": 2,
          "column": 15
        },
        "end": {
          "line": 2,
          "column": 16
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 43,
      "end": 48,
      "loc": {
        "start": {
          "line": 2,
          "column": 16
        },
        "end": {
          "line": 2,
          "column": 21
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 48,
      "end": 49,
      "loc": {
        "start": {
          "line": 2,
          "column": 21
        },
        "end": {
          "line": 2,
          "column": 22
        }
      }
    },
    {
      "type": {
        "label": "[",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 49,
      "end": 50,
      "loc": {
        "start": {
          "line": 2,
          "column": 22
        },
        "end": {
          "line": 2,
          "column": 23
        }
      }
    },
    {
      "type": {
        "label": "]",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 50,
      "end": 51,
      "loc": {
        "start": {
          "line": 2,
          "column": 23
        },
        "end": {
          "line": 2,
          "column": 24
        }
      }
    },
    {
      "type": {
        "label": ",",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 51,
      "end": 52,
      "loc": {
        "start": {
          "line": 2,
          "column": 24
        },
        "end": {
          "line": 2,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "isEqual",
      "start": 52,
      "end": 59,
      "loc": {
        "start": {
          "line": 2,
          "column": 25
        },
        "end": {
          "line": 2,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 59,
      "end": 60,
      "loc": {
        "start": {
          "line": 2,
          "column": 32
        },
        "end": {
          "line": 2,
          "column": 33
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 60,
      "end": 61,
      "loc": {
        "start": {
          "line": 2,
          "column": 33
        },
        "end": {
          "line": 2,
          "column": 34
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "a",
      "start": 61,
      "end": 62,
      "loc": {
        "start": {
          "line": 2,
          "column": 34
        },
        "end": {
          "line": 2,
          "column": 35
        }
      }
    },
    {
      "type": {
        "label": ",",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 62,
      "end": 63,
      "loc": {
        "start": {
          "line": 2,
          "column": 35
        },
        "end": {
          "line": 2,
          "column": 36
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "b",
      "start": 63,
      "end": 64,
      "loc": {
        "start": {
          "line": 2,
          "column": 36
        },
        "end": {
          "line": 2,
          "column": 37
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 64,
      "end": 65,
      "loc": {
        "start": {
          "line": 2,
          "column": 37
        },
        "end": {
          "line": 2,
          "column": 38
        }
      }
    },
    {
      "type": {
        "label": "=>",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 65,
      "end": 67,
      "loc": {
        "start": {
          "line": 2,
          "column": 38
        },
        "end": {
          "line": 2,
          "column": 40
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "a",
      "start": 68,
      "end": 69,
      "loc": {
        "start": {
          "line": 2,
          "column": 41
        },
        "end": {
          "line": 2,
          "column": 42
        }
      }
    },
    {
      "type": {
        "label": "==/!=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 6,
        "updateContext": null
      },
      "value": "==",
      "start": 69,
      "end": 71,
      "loc": {
        "start": {
          "line": 2,
          "column": 42
        },
        "end": {
          "line": 2,
          "column": 44
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "b",
      "start": 71,
      "end": 72,
      "loc": {
        "start": {
          "line": 2,
          "column": 44
        },
        "end": {
          "line": 2,
          "column": 45
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 72,
      "end": 73,
      "loc": {
        "start": {
          "line": 2,
          "column": 45
        },
        "end": {
          "line": 2,
          "column": 46
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 78,
      "end": 79,
      "loc": {
        "start": {
          "line": 3,
          "column": 4
        },
        "end": {
          "line": 3,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 81,
      "end": 85,
      "loc": {
        "start": {
          "line": 4,
          "column": 1
        },
        "end": {
          "line": 4,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 85,
      "end": 86,
      "loc": {
        "start": {
          "line": 4,
          "column": 5
        },
        "end": {
          "line": 4,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 86,
      "end": 91,
      "loc": {
        "start": {
          "line": 4,
          "column": 6
        },
        "end": {
          "line": 4,
          "column": 11
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 91,
      "end": 92,
      "loc": {
        "start": {
          "line": 4,
          "column": 11
        },
        "end": {
          "line": 4,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 92,
      "end": 97,
      "loc": {
        "start": {
          "line": 4,
          "column": 12
        },
        "end": {
          "line": 4,
          "column": 17
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 99,
      "end": 103,
      "loc": {
        "start": {
          "line": 5,
          "column": 1
        },
        "end": {
          "line": 5,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 103,
      "end": 104,
      "loc": {
        "start": {
          "line": 5,
          "column": 5
        },
        "end": {
          "line": 5,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "isEqual",
      "start": 104,
      "end": 111,
      "loc": {
        "start": {
          "line": 5,
          "column": 6
        },
        "end": {
          "line": 5,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 111,
      "end": 112,
      "loc": {
        "start": {
          "line": 5,
          "column": 13
        },
        "end": {
          "line": 5,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "isEqual",
      "start": 112,
      "end": 119,
      "loc": {
        "start": {
          "line": 5,
          "column": 14
        },
        "end": {
          "line": 5,
          "column": 21
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 124,
      "end": 125,
      "loc": {
        "start": {
          "line": 6,
          "column": 4
        },
        "end": {
          "line": 6,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "add",
      "start": 130,
      "end": 133,
      "loc": {
        "start": {
          "line": 7,
          "column": 4
        },
        "end": {
          "line": 7,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 133,
      "end": 134,
      "loc": {
        "start": {
          "line": 7,
          "column": 7
        },
        "end": {
          "line": 7,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "item",
      "start": 134,
      "end": 138,
      "loc": {
        "start": {
          "line": 7,
          "column": 8
        },
        "end": {
          "line": 7,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 138,
      "end": 139,
      "loc": {
        "start": {
          "line": 7,
          "column": 12
        },
        "end": {
          "line": 7,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 144,
      "end": 145,
      "loc": {
        "start": {
          "line": 8,
          "column": 4
        },
        "end": {
          "line": 8,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "for",
        "keyword": "for",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": true,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "for",
      "start": 147,
      "end": 150,
      "loc": {
        "start": {
          "line": 9,
          "column": 1
        },
        "end": {
          "line": 9,
          "column": 4
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 150,
      "end": 151,
      "loc": {
        "start": {
          "line": 9,
          "column": 4
        },
        "end": {
          "line": 9,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "let",
        "keyword": "let",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "let",
      "start": 151,
      "end": 154,
      "loc": {
        "start": {
          "line": 9,
          "column": 5
        },
        "end": {
          "line": 9,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 155,
      "end": 156,
      "loc": {
        "start": {
          "line": 9,
          "column": 9
        },
        "end": {
          "line": 9,
          "column": 10
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 156,
      "end": 157,
      "loc": {
        "start": {
          "line": 9,
          "column": 10
        },
        "end": {
          "line": 9,
          "column": 11
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 0,
      "start": 157,
      "end": 158,
      "loc": {
        "start": {
          "line": 9,
          "column": 11
        },
        "end": {
          "line": 9,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 158,
      "end": 159,
      "loc": {
        "start": {
          "line": 9,
          "column": 12
        },
        "end": {
          "line": 9,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 159,
      "end": 160,
      "loc": {
        "start": {
          "line": 9,
          "column": 13
        },
        "end": {
          "line": 9,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "</>",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 7,
        "updateContext": null
      },
      "value": "<",
      "start": 160,
      "end": 161,
      "loc": {
        "start": {
          "line": 9,
          "column": 14
        },
        "end": {
          "line": 9,
          "column": 15
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 161,
      "end": 165,
      "loc": {
        "start": {
          "line": 9,
          "column": 15
        },
        "end": {
          "line": 9,
          "column": 19
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 165,
      "end": 166,
      "loc": {
        "start": {
          "line": 9,
          "column": 19
        },
        "end": {
          "line": 9,
          "column": 20
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 166,
      "end": 171,
      "loc": {
        "start": {
          "line": 9,
          "column": 20
        },
        "end": {
          "line": 9,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 171,
      "end": 172,
      "loc": {
        "start": {
          "line": 9,
          "column": 25
        },
        "end": {
          "line": 9,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "length",
      "start": 172,
      "end": 178,
      "loc": {
        "start": {
          "line": 9,
          "column": 26
        },
        "end": {
          "line": 9,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 178,
      "end": 179,
      "loc": {
        "start": {
          "line": 9,
          "column": 32
        },
        "end": {
          "line": 9,
          "column": 33
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 179,
      "end": 180,
      "loc": {
        "start": {
          "line": 9,
          "column": 33
        },
        "end": {
          "line": 9,
          "column": 34
        }
      }
    },
    {
      "type": {
        "label": "++/--",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": true,
        "postfix": true,
        "binop": null
      },
      "value": "++",
      "start": 180,
      "end": 182,
      "loc": {
        "start": {
          "line": 9,
          "column": 34
        },
        "end": {
          "line": 9,
          "column": 36
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 182,
      "end": 183,
      "loc": {
        "start": {
          "line": 9,
          "column": 36
        },
        "end": {
          "line": 9,
          "column": 37
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 185,
      "end": 186,
      "loc": {
        "start": {
          "line": 10,
          "column": 1
        },
        "end": {
          "line": 10,
          "column": 2
        }
      }
    },
    {
      "type": {
        "label": "if",
        "keyword": "if",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "if",
      "start": 192,
      "end": 194,
      "loc": {
        "start": {
          "line": 11,
          "column": 5
        },
        "end": {
          "line": 11,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 194,
      "end": 195,
      "loc": {
        "start": {
          "line": 11,
          "column": 7
        },
        "end": {
          "line": 11,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 195,
      "end": 199,
      "loc": {
        "start": {
          "line": 11,
          "column": 8
        },
        "end": {
          "line": 11,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 199,
      "end": 200,
      "loc": {
        "start": {
          "line": 11,
          "column": 12
        },
        "end": {
          "line": 11,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "isEqual",
      "start": 200,
      "end": 207,
      "loc": {
        "start": {
          "line": 11,
          "column": 13
        },
        "end": {
          "line": 11,
          "column": 20
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 207,
      "end": 208,
      "loc": {
        "start": {
          "line": 11,
          "column": 20
        },
        "end": {
          "line": 11,
          "column": 21
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 208,
      "end": 212,
      "loc": {
        "start": {
          "line": 11,
          "column": 21
        },
        "end": {
          "line": 11,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 212,
      "end": 213,
      "loc": {
        "start": {
          "line": 11,
          "column": 25
        },
        "end": {
          "line": 11,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 213,
      "end": 218,
      "loc": {
        "start": {
          "line": 11,
          "column": 26
        },
        "end": {
          "line": 11,
          "column": 31
        }
      }
    },
    {
      "type": {
        "label": "[",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 218,
      "end": 219,
      "loc": {
        "start": {
          "line": 11,
          "column": 31
        },
        "end": {
          "line": 11,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 219,
      "end": 220,
      "loc": {
        "start": {
          "line": 11,
          "column": 32
        },
        "end": {
          "line": 11,
          "column": 33
        }
      }
    },
    {
      "type": {
        "label": "]",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 220,
      "end": 221,
      "loc": {
        "start": {
          "line": 11,
          "column": 33
        },
        "end": {
          "line": 11,
          "column": 34
        }
      }
    },
    {
      "type": {
        "label": ",",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 221,
      "end": 222,
      "loc": {
        "start": {
          "line": 11,
          "column": 34
        },
        "end": {
          "line": 11,
          "column": 35
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "item",
      "start": 222,
      "end": 226,
      "loc": {
        "start": {
          "line": 11,
          "column": 35
        },
        "end": {
          "line": 11,
          "column": 39
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 226,
      "end": 227,
      "loc": {
        "start": {
          "line": 11,
          "column": 39
        },
        "end": {
          "line": 11,
          "column": 40
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 227,
      "end": 228,
      "loc": {
        "start": {
          "line": 11,
          "column": 40
        },
        "end": {
          "line": 11,
          "column": 41
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 234,
      "end": 235,
      "loc": {
        "start": {
          "line": 12,
          "column": 5
        },
        "end": {
          "line": 12,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "return",
        "keyword": "return",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "return",
      "start": 238,
      "end": 244,
      "loc": {
        "start": {
          "line": 13,
          "column": 2
        },
        "end": {
          "line": 13,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "true",
        "keyword": "true",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "true",
      "start": 245,
      "end": 249,
      "loc": {
        "start": {
          "line": 13,
          "column": 9
        },
        "end": {
          "line": 13,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 255,
      "end": 256,
      "loc": {
        "start": {
          "line": 14,
          "column": 5
        },
        "end": {
          "line": 14,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 258,
      "end": 259,
      "loc": {
        "start": {
          "line": 15,
          "column": 1
        },
        "end": {
          "line": 15,
          "column": 2
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 261,
      "end": 265,
      "loc": {
        "start": {
          "line": 16,
          "column": 1
        },
        "end": {
          "line": 16,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 265,
      "end": 266,
      "loc": {
        "start": {
          "line": 16,
          "column": 5
        },
        "end": {
          "line": 16,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 266,
      "end": 271,
      "loc": {
        "start": {
          "line": 16,
          "column": 6
        },
        "end": {
          "line": 16,
          "column": 11
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 271,
      "end": 272,
      "loc": {
        "start": {
          "line": 16,
          "column": 11
        },
        "end": {
          "line": 16,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "push",
      "start": 272,
      "end": 276,
      "loc": {
        "start": {
          "line": 16,
          "column": 12
        },
        "end": {
          "line": 16,
          "column": 16
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 276,
      "end": 277,
      "loc": {
        "start": {
          "line": 16,
          "column": 16
        },
        "end": {
          "line": 16,
          "column": 17
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "item",
      "start": 277,
      "end": 281,
      "loc": {
        "start": {
          "line": 16,
          "column": 17
        },
        "end": {
          "line": 16,
          "column": 21
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 281,
      "end": 282,
      "loc": {
        "start": {
          "line": 16,
          "column": 21
        },
        "end": {
          "line": 16,
          "column": 22
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 282,
      "end": 283,
      "loc": {
        "start": {
          "line": 16,
          "column": 22
        },
        "end": {
          "line": 16,
          "column": 23
        }
      }
    },
    {
      "type": {
        "label": "return",
        "keyword": "return",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "return",
      "start": 285,
      "end": 291,
      "loc": {
        "start": {
          "line": 17,
          "column": 1
        },
        "end": {
          "line": 17,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "true",
        "keyword": "true",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "true",
      "start": 292,
      "end": 296,
      "loc": {
        "start": {
          "line": 17,
          "column": 8
        },
        "end": {
          "line": 17,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 301,
      "end": 302,
      "loc": {
        "start": {
          "line": 18,
          "column": 4
        },
        "end": {
          "line": 18,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "remove",
      "start": 307,
      "end": 313,
      "loc": {
        "start": {
          "line": 19,
          "column": 4
        },
        "end": {
          "line": 19,
          "column": 10
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 313,
      "end": 314,
      "loc": {
        "start": {
          "line": 19,
          "column": 10
        },
        "end": {
          "line": 19,
          "column": 11
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "item",
      "start": 314,
      "end": 318,
      "loc": {
        "start": {
          "line": 19,
          "column": 11
        },
        "end": {
          "line": 19,
          "column": 15
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 318,
      "end": 319,
      "loc": {
        "start": {
          "line": 19,
          "column": 15
        },
        "end": {
          "line": 19,
          "column": 16
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 324,
      "end": 325,
      "loc": {
        "start": {
          "line": 20,
          "column": 4
        },
        "end": {
          "line": 20,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "let",
        "keyword": "let",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "let",
      "start": 327,
      "end": 330,
      "loc": {
        "start": {
          "line": 21,
          "column": 1
        },
        "end": {
          "line": 21,
          "column": 4
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "index",
      "start": 331,
      "end": 336,
      "loc": {
        "start": {
          "line": 21,
          "column": 5
        },
        "end": {
          "line": 21,
          "column": 10
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 336,
      "end": 337,
      "loc": {
        "start": {
          "line": 21,
          "column": 10
        },
        "end": {
          "line": 21,
          "column": 11
        }
      }
    },
    {
      "type": {
        "label": "+/-",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": true,
        "postfix": false,
        "binop": 9,
        "updateContext": null
      },
      "value": "-",
      "start": 337,
      "end": 338,
      "loc": {
        "start": {
          "line": 21,
          "column": 11
        },
        "end": {
          "line": 21,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 1,
      "start": 338,
      "end": 339,
      "loc": {
        "start": {
          "line": 21,
          "column": 12
        },
        "end": {
          "line": 21,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 339,
      "end": 340,
      "loc": {
        "start": {
          "line": 21,
          "column": 13
        },
        "end": {
          "line": 21,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "for",
        "keyword": "for",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": true,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "for",
      "start": 342,
      "end": 345,
      "loc": {
        "start": {
          "line": 22,
          "column": 1
        },
        "end": {
          "line": 22,
          "column": 4
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 345,
      "end": 346,
      "loc": {
        "start": {
          "line": 22,
          "column": 4
        },
        "end": {
          "line": 22,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "let",
        "keyword": "let",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "let",
      "start": 346,
      "end": 349,
      "loc": {
        "start": {
          "line": 22,
          "column": 5
        },
        "end": {
          "line": 22,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 350,
      "end": 351,
      "loc": {
        "start": {
          "line": 22,
          "column": 9
        },
        "end": {
          "line": 22,
          "column": 10
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 351,
      "end": 352,
      "loc": {
        "start": {
          "line": 22,
          "column": 10
        },
        "end": {
          "line": 22,
          "column": 11
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 0,
      "start": 352,
      "end": 353,
      "loc": {
        "start": {
          "line": 22,
          "column": 11
        },
        "end": {
          "line": 22,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 353,
      "end": 354,
      "loc": {
        "start": {
          "line": 22,
          "column": 12
        },
        "end": {
          "line": 22,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 354,
      "end": 355,
      "loc": {
        "start": {
          "line": 22,
          "column": 13
        },
        "end": {
          "line": 22,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "</>",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 7,
        "updateContext": null
      },
      "value": "<",
      "start": 355,
      "end": 356,
      "loc": {
        "start": {
          "line": 22,
          "column": 14
        },
        "end": {
          "line": 22,
          "column": 15
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 356,
      "end": 360,
      "loc": {
        "start": {
          "line": 22,
          "column": 15
        },
        "end": {
          "line": 22,
          "column": 19
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 360,
      "end": 361,
      "loc": {
        "start": {
          "line": 22,
          "column": 19
        },
        "end": {
          "line": 22,
          "column": 20
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 361,
      "end": 366,
      "loc": {
        "start": {
          "line": 22,
          "column": 20
        },
        "end": {
          "line": 22,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 366,
      "end": 367,
      "loc": {
        "start": {
          "line": 22,
          "column": 25
        },
        "end": {
          "line": 22,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "length",
      "start": 367,
      "end": 373,
      "loc": {
        "start": {
          "line": 22,
          "column": 26
        },
        "end": {
          "line": 22,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 373,
      "end": 374,
      "loc": {
        "start": {
          "line": 22,
          "column": 32
        },
        "end": {
          "line": 22,
          "column": 33
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 374,
      "end": 375,
      "loc": {
        "start": {
          "line": 22,
          "column": 33
        },
        "end": {
          "line": 22,
          "column": 34
        }
      }
    },
    {
      "type": {
        "label": "++/--",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": true,
        "postfix": true,
        "binop": null
      },
      "value": "++",
      "start": 375,
      "end": 377,
      "loc": {
        "start": {
          "line": 22,
          "column": 34
        },
        "end": {
          "line": 22,
          "column": 36
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 377,
      "end": 378,
      "loc": {
        "start": {
          "line": 22,
          "column": 36
        },
        "end": {
          "line": 22,
          "column": 37
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 380,
      "end": 381,
      "loc": {
        "start": {
          "line": 23,
          "column": 1
        },
        "end": {
          "line": 23,
          "column": 2
        }
      }
    },
    {
      "type": {
        "label": "if",
        "keyword": "if",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "if",
      "start": 387,
      "end": 389,
      "loc": {
        "start": {
          "line": 24,
          "column": 5
        },
        "end": {
          "line": 24,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 389,
      "end": 390,
      "loc": {
        "start": {
          "line": 24,
          "column": 7
        },
        "end": {
          "line": 24,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 390,
      "end": 394,
      "loc": {
        "start": {
          "line": 24,
          "column": 8
        },
        "end": {
          "line": 24,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 394,
      "end": 395,
      "loc": {
        "start": {
          "line": 24,
          "column": 12
        },
        "end": {
          "line": 24,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "isEqual",
      "start": 395,
      "end": 402,
      "loc": {
        "start": {
          "line": 24,
          "column": 13
        },
        "end": {
          "line": 24,
          "column": 20
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 402,
      "end": 403,
      "loc": {
        "start": {
          "line": 24,
          "column": 20
        },
        "end": {
          "line": 24,
          "column": 21
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 403,
      "end": 407,
      "loc": {
        "start": {
          "line": 24,
          "column": 21
        },
        "end": {
          "line": 24,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 407,
      "end": 408,
      "loc": {
        "start": {
          "line": 24,
          "column": 25
        },
        "end": {
          "line": 24,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 408,
      "end": 413,
      "loc": {
        "start": {
          "line": 24,
          "column": 26
        },
        "end": {
          "line": 24,
          "column": 31
        }
      }
    },
    {
      "type": {
        "label": "[",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 413,
      "end": 414,
      "loc": {
        "start": {
          "line": 24,
          "column": 31
        },
        "end": {
          "line": 24,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 414,
      "end": 415,
      "loc": {
        "start": {
          "line": 24,
          "column": 32
        },
        "end": {
          "line": 24,
          "column": 33
        }
      }
    },
    {
      "type": {
        "label": "]",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 415,
      "end": 416,
      "loc": {
        "start": {
          "line": 24,
          "column": 33
        },
        "end": {
          "line": 24,
          "column": 34
        }
      }
    },
    {
      "type": {
        "label": ",",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 416,
      "end": 417,
      "loc": {
        "start": {
          "line": 24,
          "column": 34
        },
        "end": {
          "line": 24,
          "column": 35
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "item",
      "start": 417,
      "end": 421,
      "loc": {
        "start": {
          "line": 24,
          "column": 35
        },
        "end": {
          "line": 24,
          "column": 39
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 421,
      "end": 422,
      "loc": {
        "start": {
          "line": 24,
          "column": 39
        },
        "end": {
          "line": 24,
          "column": 40
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 422,
      "end": 423,
      "loc": {
        "start": {
          "line": 24,
          "column": 40
        },
        "end": {
          "line": 24,
          "column": 41
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 429,
      "end": 430,
      "loc": {
        "start": {
          "line": 25,
          "column": 5
        },
        "end": {
          "line": 25,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "index",
      "start": 433,
      "end": 438,
      "loc": {
        "start": {
          "line": 26,
          "column": 2
        },
        "end": {
          "line": 26,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 438,
      "end": 439,
      "loc": {
        "start": {
          "line": 26,
          "column": 7
        },
        "end": {
          "line": 26,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 439,
      "end": 440,
      "loc": {
        "start": {
          "line": 26,
          "column": 8
        },
        "end": {
          "line": 26,
          "column": 9
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 440,
      "end": 441,
      "loc": {
        "start": {
          "line": 26,
          "column": 9
        },
        "end": {
          "line": 26,
          "column": 10
        }
      }
    },
    {
      "type": {
        "label": "break",
        "keyword": "break",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "break",
      "start": 444,
      "end": 449,
      "loc": {
        "start": {
          "line": 27,
          "column": 2
        },
        "end": {
          "line": 27,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 449,
      "end": 450,
      "loc": {
        "start": {
          "line": 27,
          "column": 7
        },
        "end": {
          "line": 27,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 456,
      "end": 457,
      "loc": {
        "start": {
          "line": 28,
          "column": 5
        },
        "end": {
          "line": 28,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 459,
      "end": 460,
      "loc": {
        "start": {
          "line": 29,
          "column": 1
        },
        "end": {
          "line": 29,
          "column": 2
        }
      }
    },
    {
      "type": {
        "label": "if",
        "keyword": "if",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "if",
      "start": 462,
      "end": 464,
      "loc": {
        "start": {
          "line": 30,
          "column": 1
        },
        "end": {
          "line": 30,
          "column": 3
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 464,
      "end": 465,
      "loc": {
        "start": {
          "line": 30,
          "column": 3
        },
        "end": {
          "line": 30,
          "column": 4
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "index",
      "start": 465,
      "end": 470,
      "loc": {
        "start": {
          "line": 30,
          "column": 4
        },
        "end": {
          "line": 30,
          "column": 9
        }
      }
    },
    {
      "type": {
        "label": "</>",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 7,
        "updateContext": null
      },
      "value": ">=",
      "start": 470,
      "end": 472,
      "loc": {
        "start": {
          "line": 30,
          "column": 9
        },
        "end": {
          "line": 30,
          "column": 11
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 0,
      "start": 472,
      "end": 473,
      "loc": {
        "start": {
          "line": 30,
          "column": 11
        },
        "end": {
          "line": 30,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 473,
      "end": 474,
      "loc": {
        "start": {
          "line": 30,
          "column": 12
        },
        "end": {
          "line": 30,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 476,
      "end": 477,
      "loc": {
        "start": {
          "line": 31,
          "column": 1
        },
        "end": {
          "line": 31,
          "column": 2
        }
      }
    },
    {
      "type": {
        "label": "if",
        "keyword": "if",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "if",
      "start": 483,
      "end": 485,
      "loc": {
        "start": {
          "line": 32,
          "column": 5
        },
        "end": {
          "line": 32,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 485,
      "end": 486,
      "loc": {
        "start": {
          "line": 32,
          "column": 7
        },
        "end": {
          "line": 32,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "index",
      "start": 486,
      "end": 491,
      "loc": {
        "start": {
          "line": 32,
          "column": 8
        },
        "end": {
          "line": 32,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "</>",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 7,
        "updateContext": null
      },
      "value": ">",
      "start": 491,
      "end": 492,
      "loc": {
        "start": {
          "line": 32,
          "column": 13
        },
        "end": {
          "line": 32,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 0,
      "start": 492,
      "end": 493,
      "loc": {
        "start": {
          "line": 32,
          "column": 14
        },
        "end": {
          "line": 32,
          "column": 15
        }
      }
    },
    {
      "type": {
        "label": "&&",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 2,
        "updateContext": null
      },
      "value": "&&",
      "start": 494,
      "end": 496,
      "loc": {
        "start": {
          "line": 32,
          "column": 16
        },
        "end": {
          "line": 32,
          "column": 18
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "index",
      "start": 497,
      "end": 502,
      "loc": {
        "start": {
          "line": 32,
          "column": 19
        },
        "end": {
          "line": 32,
          "column": 24
        }
      }
    },
    {
      "type": {
        "label": "</>",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 7,
        "updateContext": null
      },
      "value": "<",
      "start": 502,
      "end": 503,
      "loc": {
        "start": {
          "line": 32,
          "column": 24
        },
        "end": {
          "line": 32,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 503,
      "end": 507,
      "loc": {
        "start": {
          "line": 32,
          "column": 25
        },
        "end": {
          "line": 32,
          "column": 29
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 507,
      "end": 508,
      "loc": {
        "start": {
          "line": 32,
          "column": 29
        },
        "end": {
          "line": 32,
          "column": 30
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 508,
      "end": 513,
      "loc": {
        "start": {
          "line": 32,
          "column": 30
        },
        "end": {
          "line": 32,
          "column": 35
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 513,
      "end": 514,
      "loc": {
        "start": {
          "line": 32,
          "column": 35
        },
        "end": {
          "line": 32,
          "column": 36
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "length",
      "start": 514,
      "end": 520,
      "loc": {
        "start": {
          "line": 32,
          "column": 36
        },
        "end": {
          "line": 32,
          "column": 42
        }
      }
    },
    {
      "type": {
        "label": "+/-",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": true,
        "postfix": false,
        "binop": 9,
        "updateContext": null
      },
      "value": "-",
      "start": 520,
      "end": 521,
      "loc": {
        "start": {
          "line": 32,
          "column": 42
        },
        "end": {
          "line": 32,
          "column": 43
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 1,
      "start": 521,
      "end": 522,
      "loc": {
        "start": {
          "line": 32,
          "column": 43
        },
        "end": {
          "line": 32,
          "column": 44
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 522,
      "end": 523,
      "loc": {
        "start": {
          "line": 32,
          "column": 44
        },
        "end": {
          "line": 32,
          "column": 45
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 529,
      "end": 530,
      "loc": {
        "start": {
          "line": 33,
          "column": 5
        },
        "end": {
          "line": 33,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "let",
        "keyword": "let",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "let",
      "start": 533,
      "end": 536,
      "loc": {
        "start": {
          "line": 34,
          "column": 2
        },
        "end": {
          "line": 34,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "array1",
      "start": 537,
      "end": 543,
      "loc": {
        "start": {
          "line": 34,
          "column": 6
        },
        "end": {
          "line": 34,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 543,
      "end": 544,
      "loc": {
        "start": {
          "line": 34,
          "column": 12
        },
        "end": {
          "line": 34,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 544,
      "end": 548,
      "loc": {
        "start": {
          "line": 34,
          "column": 13
        },
        "end": {
          "line": 34,
          "column": 17
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 548,
      "end": 549,
      "loc": {
        "start": {
          "line": 34,
          "column": 17
        },
        "end": {
          "line": 34,
          "column": 18
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 549,
      "end": 554,
      "loc": {
        "start": {
          "line": 34,
          "column": 18
        },
        "end": {
          "line": 34,
          "column": 23
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 554,
      "end": 555,
      "loc": {
        "start": {
          "line": 34,
          "column": 23
        },
        "end": {
          "line": 34,
          "column": 24
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "slice",
      "start": 555,
      "end": 560,
      "loc": {
        "start": {
          "line": 34,
          "column": 24
        },
        "end": {
          "line": 34,
          "column": 29
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 560,
      "end": 561,
      "loc": {
        "start": {
          "line": 34,
          "column": 29
        },
        "end": {
          "line": 34,
          "column": 30
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "index",
      "start": 561,
      "end": 566,
      "loc": {
        "start": {
          "line": 34,
          "column": 30
        },
        "end": {
          "line": 34,
          "column": 35
        }
      }
    },
    {
      "type": {
        "label": "+/-",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": true,
        "postfix": false,
        "binop": 9,
        "updateContext": null
      },
      "value": "+",
      "start": 566,
      "end": 567,
      "loc": {
        "start": {
          "line": 34,
          "column": 35
        },
        "end": {
          "line": 34,
          "column": 36
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 1,
      "start": 567,
      "end": 568,
      "loc": {
        "start": {
          "line": 34,
          "column": 36
        },
        "end": {
          "line": 34,
          "column": 37
        }
      }
    },
    {
      "type": {
        "label": ",",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 568,
      "end": 569,
      "loc": {
        "start": {
          "line": 34,
          "column": 37
        },
        "end": {
          "line": 34,
          "column": 38
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 569,
      "end": 573,
      "loc": {
        "start": {
          "line": 34,
          "column": 38
        },
        "end": {
          "line": 34,
          "column": 42
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 573,
      "end": 574,
      "loc": {
        "start": {
          "line": 34,
          "column": 42
        },
        "end": {
          "line": 34,
          "column": 43
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 574,
      "end": 579,
      "loc": {
        "start": {
          "line": 34,
          "column": 43
        },
        "end": {
          "line": 34,
          "column": 48
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 579,
      "end": 580,
      "loc": {
        "start": {
          "line": 34,
          "column": 48
        },
        "end": {
          "line": 34,
          "column": 49
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "length",
      "start": 580,
      "end": 586,
      "loc": {
        "start": {
          "line": 34,
          "column": 49
        },
        "end": {
          "line": 34,
          "column": 55
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 586,
      "end": 587,
      "loc": {
        "start": {
          "line": 34,
          "column": 55
        },
        "end": {
          "line": 34,
          "column": 56
        }
      }
    },
    {
      "type": {
        "label": "let",
        "keyword": "let",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "let",
      "start": 590,
      "end": 593,
      "loc": {
        "start": {
          "line": 35,
          "column": 2
        },
        "end": {
          "line": 35,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "array2",
      "start": 594,
      "end": 600,
      "loc": {
        "start": {
          "line": 35,
          "column": 6
        },
        "end": {
          "line": 35,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 600,
      "end": 601,
      "loc": {
        "start": {
          "line": 35,
          "column": 12
        },
        "end": {
          "line": 35,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 601,
      "end": 605,
      "loc": {
        "start": {
          "line": 35,
          "column": 13
        },
        "end": {
          "line": 35,
          "column": 17
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 605,
      "end": 606,
      "loc": {
        "start": {
          "line": 35,
          "column": 17
        },
        "end": {
          "line": 35,
          "column": 18
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 606,
      "end": 611,
      "loc": {
        "start": {
          "line": 35,
          "column": 18
        },
        "end": {
          "line": 35,
          "column": 23
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 611,
      "end": 612,
      "loc": {
        "start": {
          "line": 35,
          "column": 23
        },
        "end": {
          "line": 35,
          "column": 24
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "slice",
      "start": 612,
      "end": 617,
      "loc": {
        "start": {
          "line": 35,
          "column": 24
        },
        "end": {
          "line": 35,
          "column": 29
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 617,
      "end": 618,
      "loc": {
        "start": {
          "line": 35,
          "column": 29
        },
        "end": {
          "line": 35,
          "column": 30
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 0,
      "start": 618,
      "end": 619,
      "loc": {
        "start": {
          "line": 35,
          "column": 30
        },
        "end": {
          "line": 35,
          "column": 31
        }
      }
    },
    {
      "type": {
        "label": ",",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 619,
      "end": 620,
      "loc": {
        "start": {
          "line": 35,
          "column": 31
        },
        "end": {
          "line": 35,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "index",
      "start": 620,
      "end": 625,
      "loc": {
        "start": {
          "line": 35,
          "column": 32
        },
        "end": {
          "line": 35,
          "column": 37
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 625,
      "end": 626,
      "loc": {
        "start": {
          "line": 35,
          "column": 37
        },
        "end": {
          "line": 35,
          "column": 38
        }
      }
    },
    {
      "type": {
        "label": "for",
        "keyword": "for",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": true,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "for",
      "start": 630,
      "end": 633,
      "loc": {
        "start": {
          "line": 37,
          "column": 2
        },
        "end": {
          "line": 37,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 633,
      "end": 634,
      "loc": {
        "start": {
          "line": 37,
          "column": 5
        },
        "end": {
          "line": 37,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "let",
        "keyword": "let",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "let",
      "start": 634,
      "end": 637,
      "loc": {
        "start": {
          "line": 37,
          "column": 6
        },
        "end": {
          "line": 37,
          "column": 9
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 638,
      "end": 639,
      "loc": {
        "start": {
          "line": 37,
          "column": 10
        },
        "end": {
          "line": 37,
          "column": 11
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 639,
      "end": 640,
      "loc": {
        "start": {
          "line": 37,
          "column": 11
        },
        "end": {
          "line": 37,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 0,
      "start": 640,
      "end": 641,
      "loc": {
        "start": {
          "line": 37,
          "column": 12
        },
        "end": {
          "line": 37,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 641,
      "end": 642,
      "loc": {
        "start": {
          "line": 37,
          "column": 13
        },
        "end": {
          "line": 37,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 642,
      "end": 643,
      "loc": {
        "start": {
          "line": 37,
          "column": 14
        },
        "end": {
          "line": 37,
          "column": 15
        }
      }
    },
    {
      "type": {
        "label": "</>",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 7,
        "updateContext": null
      },
      "value": "<",
      "start": 643,
      "end": 644,
      "loc": {
        "start": {
          "line": 37,
          "column": 15
        },
        "end": {
          "line": 37,
          "column": 16
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "array1",
      "start": 644,
      "end": 650,
      "loc": {
        "start": {
          "line": 37,
          "column": 16
        },
        "end": {
          "line": 37,
          "column": 22
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 650,
      "end": 651,
      "loc": {
        "start": {
          "line": 37,
          "column": 22
        },
        "end": {
          "line": 37,
          "column": 23
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "length",
      "start": 651,
      "end": 657,
      "loc": {
        "start": {
          "line": 37,
          "column": 23
        },
        "end": {
          "line": 37,
          "column": 29
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 657,
      "end": 658,
      "loc": {
        "start": {
          "line": 37,
          "column": 29
        },
        "end": {
          "line": 37,
          "column": 30
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 658,
      "end": 659,
      "loc": {
        "start": {
          "line": 37,
          "column": 30
        },
        "end": {
          "line": 37,
          "column": 31
        }
      }
    },
    {
      "type": {
        "label": "++/--",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": true,
        "postfix": true,
        "binop": null
      },
      "value": "++",
      "start": 659,
      "end": 661,
      "loc": {
        "start": {
          "line": 37,
          "column": 31
        },
        "end": {
          "line": 37,
          "column": 33
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 661,
      "end": 662,
      "loc": {
        "start": {
          "line": 37,
          "column": 33
        },
        "end": {
          "line": 37,
          "column": 34
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 665,
      "end": 666,
      "loc": {
        "start": {
          "line": 38,
          "column": 2
        },
        "end": {
          "line": 38,
          "column": 3
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "array2",
      "start": 673,
      "end": 679,
      "loc": {
        "start": {
          "line": 39,
          "column": 6
        },
        "end": {
          "line": 39,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 679,
      "end": 680,
      "loc": {
        "start": {
          "line": 39,
          "column": 12
        },
        "end": {
          "line": 39,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "push",
      "start": 680,
      "end": 684,
      "loc": {
        "start": {
          "line": 39,
          "column": 13
        },
        "end": {
          "line": 39,
          "column": 17
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 684,
      "end": 685,
      "loc": {
        "start": {
          "line": 39,
          "column": 17
        },
        "end": {
          "line": 39,
          "column": 18
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "array1",
      "start": 685,
      "end": 691,
      "loc": {
        "start": {
          "line": 39,
          "column": 18
        },
        "end": {
          "line": 39,
          "column": 24
        }
      }
    },
    {
      "type": {
        "label": "[",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 691,
      "end": 692,
      "loc": {
        "start": {
          "line": 39,
          "column": 24
        },
        "end": {
          "line": 39,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 692,
      "end": 693,
      "loc": {
        "start": {
          "line": 39,
          "column": 25
        },
        "end": {
          "line": 39,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": "]",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 693,
      "end": 694,
      "loc": {
        "start": {
          "line": 39,
          "column": 26
        },
        "end": {
          "line": 39,
          "column": 27
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 694,
      "end": 695,
      "loc": {
        "start": {
          "line": 39,
          "column": 27
        },
        "end": {
          "line": 39,
          "column": 28
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 695,
      "end": 696,
      "loc": {
        "start": {
          "line": 39,
          "column": 28
        },
        "end": {
          "line": 39,
          "column": 29
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 699,
      "end": 700,
      "loc": {
        "start": {
          "line": 40,
          "column": 2
        },
        "end": {
          "line": 40,
          "column": 3
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 703,
      "end": 707,
      "loc": {
        "start": {
          "line": 41,
          "column": 2
        },
        "end": {
          "line": 41,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 707,
      "end": 708,
      "loc": {
        "start": {
          "line": 41,
          "column": 6
        },
        "end": {
          "line": 41,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 708,
      "end": 713,
      "loc": {
        "start": {
          "line": 41,
          "column": 7
        },
        "end": {
          "line": 41,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 713,
      "end": 714,
      "loc": {
        "start": {
          "line": 41,
          "column": 12
        },
        "end": {
          "line": 41,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "array2",
      "start": 714,
      "end": 720,
      "loc": {
        "start": {
          "line": 41,
          "column": 13
        },
        "end": {
          "line": 41,
          "column": 19
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 720,
      "end": 721,
      "loc": {
        "start": {
          "line": 41,
          "column": 19
        },
        "end": {
          "line": 41,
          "column": 20
        }
      }
    },
    {
      "type": {
        "label": "return",
        "keyword": "return",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "return",
      "start": 724,
      "end": 730,
      "loc": {
        "start": {
          "line": 42,
          "column": 2
        },
        "end": {
          "line": 42,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "true",
        "keyword": "true",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "true",
      "start": 731,
      "end": 735,
      "loc": {
        "start": {
          "line": 42,
          "column": 9
        },
        "end": {
          "line": 42,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 741,
      "end": 742,
      "loc": {
        "start": {
          "line": 43,
          "column": 5
        },
        "end": {
          "line": 43,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "if",
        "keyword": "if",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "if",
      "start": 749,
      "end": 751,
      "loc": {
        "start": {
          "line": 45,
          "column": 5
        },
        "end": {
          "line": 45,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 751,
      "end": 752,
      "loc": {
        "start": {
          "line": 45,
          "column": 7
        },
        "end": {
          "line": 45,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "index",
      "start": 752,
      "end": 757,
      "loc": {
        "start": {
          "line": 45,
          "column": 8
        },
        "end": {
          "line": 45,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "==/!=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 6,
        "updateContext": null
      },
      "value": "==",
      "start": 757,
      "end": 759,
      "loc": {
        "start": {
          "line": 45,
          "column": 13
        },
        "end": {
          "line": 45,
          "column": 15
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 0,
      "start": 759,
      "end": 760,
      "loc": {
        "start": {
          "line": 45,
          "column": 15
        },
        "end": {
          "line": 45,
          "column": 16
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 760,
      "end": 761,
      "loc": {
        "start": {
          "line": 45,
          "column": 16
        },
        "end": {
          "line": 45,
          "column": 17
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 767,
      "end": 768,
      "loc": {
        "start": {
          "line": 46,
          "column": 5
        },
        "end": {
          "line": 46,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 772,
      "end": 776,
      "loc": {
        "start": {
          "line": 48,
          "column": 2
        },
        "end": {
          "line": 48,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 776,
      "end": 777,
      "loc": {
        "start": {
          "line": 48,
          "column": 6
        },
        "end": {
          "line": 48,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 777,
      "end": 782,
      "loc": {
        "start": {
          "line": 48,
          "column": 7
        },
        "end": {
          "line": 48,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 782,
      "end": 783,
      "loc": {
        "start": {
          "line": 48,
          "column": 12
        },
        "end": {
          "line": 48,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 783,
      "end": 787,
      "loc": {
        "start": {
          "line": 48,
          "column": 13
        },
        "end": {
          "line": 48,
          "column": 17
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 787,
      "end": 788,
      "loc": {
        "start": {
          "line": 48,
          "column": 17
        },
        "end": {
          "line": 48,
          "column": 18
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 788,
      "end": 793,
      "loc": {
        "start": {
          "line": 48,
          "column": 18
        },
        "end": {
          "line": 48,
          "column": 23
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 793,
      "end": 794,
      "loc": {
        "start": {
          "line": 48,
          "column": 23
        },
        "end": {
          "line": 48,
          "column": 24
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "slice",
      "start": 794,
      "end": 799,
      "loc": {
        "start": {
          "line": 48,
          "column": 24
        },
        "end": {
          "line": 48,
          "column": 29
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 799,
      "end": 800,
      "loc": {
        "start": {
          "line": 48,
          "column": 29
        },
        "end": {
          "line": 48,
          "column": 30
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 1,
      "start": 800,
      "end": 801,
      "loc": {
        "start": {
          "line": 48,
          "column": 30
        },
        "end": {
          "line": 48,
          "column": 31
        }
      }
    },
    {
      "type": {
        "label": ",",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 801,
      "end": 802,
      "loc": {
        "start": {
          "line": 48,
          "column": 31
        },
        "end": {
          "line": 48,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 802,
      "end": 806,
      "loc": {
        "start": {
          "line": 48,
          "column": 32
        },
        "end": {
          "line": 48,
          "column": 36
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 806,
      "end": 807,
      "loc": {
        "start": {
          "line": 48,
          "column": 36
        },
        "end": {
          "line": 48,
          "column": 37
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 807,
      "end": 812,
      "loc": {
        "start": {
          "line": 48,
          "column": 37
        },
        "end": {
          "line": 48,
          "column": 42
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 812,
      "end": 813,
      "loc": {
        "start": {
          "line": 48,
          "column": 42
        },
        "end": {
          "line": 48,
          "column": 43
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "length",
      "start": 813,
      "end": 819,
      "loc": {
        "start": {
          "line": 48,
          "column": 43
        },
        "end": {
          "line": 48,
          "column": 49
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 819,
      "end": 820,
      "loc": {
        "start": {
          "line": 48,
          "column": 49
        },
        "end": {
          "line": 48,
          "column": 50
        }
      }
    },
    {
      "type": {
        "label": "return",
        "keyword": "return",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "return",
      "start": 823,
      "end": 829,
      "loc": {
        "start": {
          "line": 49,
          "column": 2
        },
        "end": {
          "line": 49,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "true",
        "keyword": "true",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "true",
      "start": 830,
      "end": 834,
      "loc": {
        "start": {
          "line": 49,
          "column": 9
        },
        "end": {
          "line": 49,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 840,
      "end": 841,
      "loc": {
        "start": {
          "line": 50,
          "column": 5
        },
        "end": {
          "line": 50,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "if",
        "keyword": "if",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "if",
      "start": 847,
      "end": 849,
      "loc": {
        "start": {
          "line": 51,
          "column": 5
        },
        "end": {
          "line": 51,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 849,
      "end": 850,
      "loc": {
        "start": {
          "line": 51,
          "column": 7
        },
        "end": {
          "line": 51,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "index",
      "start": 850,
      "end": 855,
      "loc": {
        "start": {
          "line": 51,
          "column": 8
        },
        "end": {
          "line": 51,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "==/!=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 6,
        "updateContext": null
      },
      "value": "==",
      "start": 855,
      "end": 857,
      "loc": {
        "start": {
          "line": 51,
          "column": 13
        },
        "end": {
          "line": 51,
          "column": 15
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 857,
      "end": 861,
      "loc": {
        "start": {
          "line": 51,
          "column": 15
        },
        "end": {
          "line": 51,
          "column": 19
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 861,
      "end": 862,
      "loc": {
        "start": {
          "line": 51,
          "column": 19
        },
        "end": {
          "line": 51,
          "column": 20
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 862,
      "end": 867,
      "loc": {
        "start": {
          "line": 51,
          "column": 20
        },
        "end": {
          "line": 51,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 867,
      "end": 868,
      "loc": {
        "start": {
          "line": 51,
          "column": 25
        },
        "end": {
          "line": 51,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "length",
      "start": 868,
      "end": 874,
      "loc": {
        "start": {
          "line": 51,
          "column": 26
        },
        "end": {
          "line": 51,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": "+/-",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": true,
        "postfix": false,
        "binop": 9,
        "updateContext": null
      },
      "value": "-",
      "start": 874,
      "end": 875,
      "loc": {
        "start": {
          "line": 51,
          "column": 32
        },
        "end": {
          "line": 51,
          "column": 33
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 1,
      "start": 875,
      "end": 876,
      "loc": {
        "start": {
          "line": 51,
          "column": 33
        },
        "end": {
          "line": 51,
          "column": 34
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 876,
      "end": 877,
      "loc": {
        "start": {
          "line": 51,
          "column": 34
        },
        "end": {
          "line": 51,
          "column": 35
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 883,
      "end": 884,
      "loc": {
        "start": {
          "line": 52,
          "column": 5
        },
        "end": {
          "line": 52,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 887,
      "end": 891,
      "loc": {
        "start": {
          "line": 53,
          "column": 2
        },
        "end": {
          "line": 53,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 891,
      "end": 892,
      "loc": {
        "start": {
          "line": 53,
          "column": 6
        },
        "end": {
          "line": 53,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 892,
      "end": 897,
      "loc": {
        "start": {
          "line": 53,
          "column": 7
        },
        "end": {
          "line": 53,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 897,
      "end": 898,
      "loc": {
        "start": {
          "line": 53,
          "column": 12
        },
        "end": {
          "line": 53,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 898,
      "end": 902,
      "loc": {
        "start": {
          "line": 53,
          "column": 13
        },
        "end": {
          "line": 53,
          "column": 17
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 902,
      "end": 903,
      "loc": {
        "start": {
          "line": 53,
          "column": 17
        },
        "end": {
          "line": 53,
          "column": 18
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 903,
      "end": 908,
      "loc": {
        "start": {
          "line": 53,
          "column": 18
        },
        "end": {
          "line": 53,
          "column": 23
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 908,
      "end": 909,
      "loc": {
        "start": {
          "line": 53,
          "column": 23
        },
        "end": {
          "line": 53,
          "column": 24
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "slice",
      "start": 909,
      "end": 914,
      "loc": {
        "start": {
          "line": 53,
          "column": 24
        },
        "end": {
          "line": 53,
          "column": 29
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 914,
      "end": 915,
      "loc": {
        "start": {
          "line": 53,
          "column": 29
        },
        "end": {
          "line": 53,
          "column": 30
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 0,
      "start": 915,
      "end": 916,
      "loc": {
        "start": {
          "line": 53,
          "column": 30
        },
        "end": {
          "line": 53,
          "column": 31
        }
      }
    },
    {
      "type": {
        "label": ",",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 916,
      "end": 917,
      "loc": {
        "start": {
          "line": 53,
          "column": 31
        },
        "end": {
          "line": 53,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 917,
      "end": 921,
      "loc": {
        "start": {
          "line": 53,
          "column": 32
        },
        "end": {
          "line": 53,
          "column": 36
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 921,
      "end": 922,
      "loc": {
        "start": {
          "line": 53,
          "column": 36
        },
        "end": {
          "line": 53,
          "column": 37
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 922,
      "end": 927,
      "loc": {
        "start": {
          "line": 53,
          "column": 37
        },
        "end": {
          "line": 53,
          "column": 42
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 927,
      "end": 928,
      "loc": {
        "start": {
          "line": 53,
          "column": 42
        },
        "end": {
          "line": 53,
          "column": 43
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "length",
      "start": 928,
      "end": 934,
      "loc": {
        "start": {
          "line": 53,
          "column": 43
        },
        "end": {
          "line": 53,
          "column": 49
        }
      }
    },
    {
      "type": {
        "label": "+/-",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": true,
        "postfix": false,
        "binop": 9,
        "updateContext": null
      },
      "value": "-",
      "start": 934,
      "end": 935,
      "loc": {
        "start": {
          "line": 53,
          "column": 49
        },
        "end": {
          "line": 53,
          "column": 50
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 1,
      "start": 935,
      "end": 936,
      "loc": {
        "start": {
          "line": 53,
          "column": 50
        },
        "end": {
          "line": 53,
          "column": 51
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 936,
      "end": 937,
      "loc": {
        "start": {
          "line": 53,
          "column": 51
        },
        "end": {
          "line": 53,
          "column": 52
        }
      }
    },
    {
      "type": {
        "label": "return",
        "keyword": "return",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "return",
      "start": 940,
      "end": 946,
      "loc": {
        "start": {
          "line": 54,
          "column": 2
        },
        "end": {
          "line": 54,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "true",
        "keyword": "true",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "true",
      "start": 947,
      "end": 951,
      "loc": {
        "start": {
          "line": 54,
          "column": 9
        },
        "end": {
          "line": 54,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 957,
      "end": 958,
      "loc": {
        "start": {
          "line": 55,
          "column": 5
        },
        "end": {
          "line": 55,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 960,
      "end": 961,
      "loc": {
        "start": {
          "line": 56,
          "column": 1
        },
        "end": {
          "line": 56,
          "column": 2
        }
      }
    },
    {
      "type": {
        "label": "return",
        "keyword": "return",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "return",
      "start": 963,
      "end": 969,
      "loc": {
        "start": {
          "line": 57,
          "column": 1
        },
        "end": {
          "line": 57,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "true",
        "keyword": "true",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "true",
      "start": 970,
      "end": 974,
      "loc": {
        "start": {
          "line": 57,
          "column": 8
        },
        "end": {
          "line": 57,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 985,
      "end": 986,
      "loc": {
        "start": {
          "line": 59,
          "column": 4
        },
        "end": {
          "line": 59,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "contains",
      "start": 991,
      "end": 999,
      "loc": {
        "start": {
          "line": 60,
          "column": 4
        },
        "end": {
          "line": 60,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 999,
      "end": 1000,
      "loc": {
        "start": {
          "line": 60,
          "column": 12
        },
        "end": {
          "line": 60,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "item",
      "start": 1000,
      "end": 1004,
      "loc": {
        "start": {
          "line": 60,
          "column": 13
        },
        "end": {
          "line": 60,
          "column": 17
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1004,
      "end": 1005,
      "loc": {
        "start": {
          "line": 60,
          "column": 17
        },
        "end": {
          "line": 60,
          "column": 18
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1010,
      "end": 1011,
      "loc": {
        "start": {
          "line": 61,
          "column": 4
        },
        "end": {
          "line": 61,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "for",
        "keyword": "for",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": true,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "for",
      "start": 1013,
      "end": 1016,
      "loc": {
        "start": {
          "line": 62,
          "column": 1
        },
        "end": {
          "line": 62,
          "column": 4
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1016,
      "end": 1017,
      "loc": {
        "start": {
          "line": 62,
          "column": 4
        },
        "end": {
          "line": 62,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "let",
        "keyword": "let",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "let",
      "start": 1017,
      "end": 1020,
      "loc": {
        "start": {
          "line": 62,
          "column": 5
        },
        "end": {
          "line": 62,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 1021,
      "end": 1022,
      "loc": {
        "start": {
          "line": 62,
          "column": 9
        },
        "end": {
          "line": 62,
          "column": 10
        }
      }
    },
    {
      "type": {
        "label": "=",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": true,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "=",
      "start": 1022,
      "end": 1023,
      "loc": {
        "start": {
          "line": 62,
          "column": 10
        },
        "end": {
          "line": 62,
          "column": 11
        }
      }
    },
    {
      "type": {
        "label": "num",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": 0,
      "start": 1023,
      "end": 1024,
      "loc": {
        "start": {
          "line": 62,
          "column": 11
        },
        "end": {
          "line": 62,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1024,
      "end": 1025,
      "loc": {
        "start": {
          "line": 62,
          "column": 12
        },
        "end": {
          "line": 62,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 1025,
      "end": 1026,
      "loc": {
        "start": {
          "line": 62,
          "column": 13
        },
        "end": {
          "line": 62,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "</>",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": 7,
        "updateContext": null
      },
      "value": "<",
      "start": 1026,
      "end": 1027,
      "loc": {
        "start": {
          "line": 62,
          "column": 14
        },
        "end": {
          "line": 62,
          "column": 15
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 1027,
      "end": 1031,
      "loc": {
        "start": {
          "line": 62,
          "column": 15
        },
        "end": {
          "line": 62,
          "column": 19
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1031,
      "end": 1032,
      "loc": {
        "start": {
          "line": 62,
          "column": 19
        },
        "end": {
          "line": 62,
          "column": 20
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 1032,
      "end": 1037,
      "loc": {
        "start": {
          "line": 62,
          "column": 20
        },
        "end": {
          "line": 62,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1037,
      "end": 1038,
      "loc": {
        "start": {
          "line": 62,
          "column": 25
        },
        "end": {
          "line": 62,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "length",
      "start": 1038,
      "end": 1044,
      "loc": {
        "start": {
          "line": 62,
          "column": 26
        },
        "end": {
          "line": 62,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1044,
      "end": 1045,
      "loc": {
        "start": {
          "line": 62,
          "column": 32
        },
        "end": {
          "line": 62,
          "column": 33
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 1045,
      "end": 1046,
      "loc": {
        "start": {
          "line": 62,
          "column": 33
        },
        "end": {
          "line": 62,
          "column": 34
        }
      }
    },
    {
      "type": {
        "label": "++/--",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": true,
        "postfix": true,
        "binop": null
      },
      "value": "++",
      "start": 1046,
      "end": 1048,
      "loc": {
        "start": {
          "line": 62,
          "column": 34
        },
        "end": {
          "line": 62,
          "column": 36
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1048,
      "end": 1049,
      "loc": {
        "start": {
          "line": 62,
          "column": 36
        },
        "end": {
          "line": 62,
          "column": 37
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1051,
      "end": 1052,
      "loc": {
        "start": {
          "line": 63,
          "column": 1
        },
        "end": {
          "line": 63,
          "column": 2
        }
      }
    },
    {
      "type": {
        "label": "if",
        "keyword": "if",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "if",
      "start": 1058,
      "end": 1060,
      "loc": {
        "start": {
          "line": 64,
          "column": 5
        },
        "end": {
          "line": 64,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1060,
      "end": 1061,
      "loc": {
        "start": {
          "line": 64,
          "column": 7
        },
        "end": {
          "line": 64,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 1061,
      "end": 1065,
      "loc": {
        "start": {
          "line": 64,
          "column": 8
        },
        "end": {
          "line": 64,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1065,
      "end": 1066,
      "loc": {
        "start": {
          "line": 64,
          "column": 12
        },
        "end": {
          "line": 64,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "isEqual",
      "start": 1066,
      "end": 1073,
      "loc": {
        "start": {
          "line": 64,
          "column": 13
        },
        "end": {
          "line": 64,
          "column": 20
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1073,
      "end": 1074,
      "loc": {
        "start": {
          "line": 64,
          "column": 20
        },
        "end": {
          "line": 64,
          "column": 21
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 1074,
      "end": 1078,
      "loc": {
        "start": {
          "line": 64,
          "column": 21
        },
        "end": {
          "line": 64,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1078,
      "end": 1079,
      "loc": {
        "start": {
          "line": 64,
          "column": 25
        },
        "end": {
          "line": 64,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 1079,
      "end": 1084,
      "loc": {
        "start": {
          "line": 64,
          "column": 26
        },
        "end": {
          "line": 64,
          "column": 31
        }
      }
    },
    {
      "type": {
        "label": "[",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1084,
      "end": 1085,
      "loc": {
        "start": {
          "line": 64,
          "column": 31
        },
        "end": {
          "line": 64,
          "column": 32
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "i",
      "start": 1085,
      "end": 1086,
      "loc": {
        "start": {
          "line": 64,
          "column": 32
        },
        "end": {
          "line": 64,
          "column": 33
        }
      }
    },
    {
      "type": {
        "label": "]",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1086,
      "end": 1087,
      "loc": {
        "start": {
          "line": 64,
          "column": 33
        },
        "end": {
          "line": 64,
          "column": 34
        }
      }
    },
    {
      "type": {
        "label": ",",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1087,
      "end": 1088,
      "loc": {
        "start": {
          "line": 64,
          "column": 34
        },
        "end": {
          "line": 64,
          "column": 35
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "item",
      "start": 1088,
      "end": 1092,
      "loc": {
        "start": {
          "line": 64,
          "column": 35
        },
        "end": {
          "line": 64,
          "column": 39
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1092,
      "end": 1093,
      "loc": {
        "start": {
          "line": 64,
          "column": 39
        },
        "end": {
          "line": 64,
          "column": 40
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1093,
      "end": 1094,
      "loc": {
        "start": {
          "line": 64,
          "column": 40
        },
        "end": {
          "line": 64,
          "column": 41
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1100,
      "end": 1101,
      "loc": {
        "start": {
          "line": 65,
          "column": 5
        },
        "end": {
          "line": 65,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "return",
        "keyword": "return",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "return",
      "start": 1104,
      "end": 1110,
      "loc": {
        "start": {
          "line": 66,
          "column": 2
        },
        "end": {
          "line": 66,
          "column": 8
        }
      }
    },
    {
      "type": {
        "label": "true",
        "keyword": "true",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "true",
      "start": 1111,
      "end": 1115,
      "loc": {
        "start": {
          "line": 66,
          "column": 9
        },
        "end": {
          "line": 66,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1121,
      "end": 1122,
      "loc": {
        "start": {
          "line": 67,
          "column": 5
        },
        "end": {
          "line": 67,
          "column": 6
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1124,
      "end": 1125,
      "loc": {
        "start": {
          "line": 68,
          "column": 1
        },
        "end": {
          "line": 68,
          "column": 2
        }
      }
    },
    {
      "type": {
        "label": "return",
        "keyword": "return",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "return",
      "start": 1127,
      "end": 1133,
      "loc": {
        "start": {
          "line": 69,
          "column": 1
        },
        "end": {
          "line": 69,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "false",
        "keyword": "false",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "false",
      "start": 1134,
      "end": 1139,
      "loc": {
        "start": {
          "line": 69,
          "column": 8
        },
        "end": {
          "line": 69,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1139,
      "end": 1140,
      "loc": {
        "start": {
          "line": 69,
          "column": 13
        },
        "end": {
          "line": 69,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1145,
      "end": 1146,
      "loc": {
        "start": {
          "line": 70,
          "column": 4
        },
        "end": {
          "line": 70,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "getItems",
      "start": 1151,
      "end": 1159,
      "loc": {
        "start": {
          "line": 71,
          "column": 4
        },
        "end": {
          "line": 71,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1159,
      "end": 1160,
      "loc": {
        "start": {
          "line": 71,
          "column": 12
        },
        "end": {
          "line": 71,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1160,
      "end": 1161,
      "loc": {
        "start": {
          "line": 71,
          "column": 13
        },
        "end": {
          "line": 71,
          "column": 14
        }
      }
    },
    {
      "type": {
        "label": "{",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1166,
      "end": 1167,
      "loc": {
        "start": {
          "line": 72,
          "column": 4
        },
        "end": {
          "line": 72,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "return",
        "keyword": "return",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "return",
      "start": 1169,
      "end": 1175,
      "loc": {
        "start": {
          "line": 73,
          "column": 1
        },
        "end": {
          "line": 73,
          "column": 7
        }
      }
    },
    {
      "type": {
        "label": "this",
        "keyword": "this",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "value": "this",
      "start": 1176,
      "end": 1180,
      "loc": {
        "start": {
          "line": 73,
          "column": 8
        },
        "end": {
          "line": 73,
          "column": 12
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1180,
      "end": 1181,
      "loc": {
        "start": {
          "line": 73,
          "column": 12
        },
        "end": {
          "line": 73,
          "column": 13
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "items",
      "start": 1181,
      "end": 1186,
      "loc": {
        "start": {
          "line": 73,
          "column": 13
        },
        "end": {
          "line": 73,
          "column": 18
        }
      }
    },
    {
      "type": {
        "label": ".",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1186,
      "end": 1187,
      "loc": {
        "start": {
          "line": 73,
          "column": 18
        },
        "end": {
          "line": 73,
          "column": 19
        }
      }
    },
    {
      "type": {
        "label": "name",
        "beforeExpr": false,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "value": "slice",
      "start": 1187,
      "end": 1192,
      "loc": {
        "start": {
          "line": 73,
          "column": 19
        },
        "end": {
          "line": 73,
          "column": 24
        }
      }
    },
    {
      "type": {
        "label": "(",
        "beforeExpr": true,
        "startsExpr": true,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1192,
      "end": 1193,
      "loc": {
        "start": {
          "line": 73,
          "column": 24
        },
        "end": {
          "line": 73,
          "column": 25
        }
      }
    },
    {
      "type": {
        "label": ")",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1193,
      "end": 1194,
      "loc": {
        "start": {
          "line": 73,
          "column": 25
        },
        "end": {
          "line": 73,
          "column": 26
        }
      }
    },
    {
      "type": {
        "label": ";",
        "beforeExpr": true,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1194,
      "end": 1195,
      "loc": {
        "start": {
          "line": 73,
          "column": 26
        },
        "end": {
          "line": 73,
          "column": 27
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1200,
      "end": 1201,
      "loc": {
        "start": {
          "line": 74,
          "column": 4
        },
        "end": {
          "line": 74,
          "column": 5
        }
      }
    },
    {
      "type": {
        "label": "}",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null
      },
      "start": 1203,
      "end": 1204,
      "loc": {
        "start": {
          "line": 76,
          "column": 0
        },
        "end": {
          "line": 76,
          "column": 1
        }
      }
    },
    {
      "type": {
        "label": "eof",
        "beforeExpr": false,
        "startsExpr": false,
        "rightAssociative": false,
        "isLoop": false,
        "isAssign": false,
        "prefix": false,
        "postfix": false,
        "binop": null,
        "updateContext": null
      },
      "start": 1205,
      "end": 1205,
      "loc": {
        "start": {
          "line": 77,
          "column": 0
        },
        "end": {
          "line": 77,
          "column": 0
        }
      }
    }
  ]
}