{
  "type": "Script",
  "directives": [],
  "statements": [
    {
      "type": "ExpressionStatement",
      "expression": {
        "type": "AssignmentExpression",
        "binding": {
          "type": "AssignmentTargetIdentifier",
          "name": "a",
          "loc": {
            "start": {
              "line": 1,
              "column": 0,
              "offset": 0
            },
            "end": {
              "line": 1,
              "column": 1,
              "offset": 1
            }
          }
        },
        "expression": {
          "type": "FunctionExpression",
          "isAsync": false,
          "isGenerator": false,
          "name": null,
          "params": {
            "type": "FormalParameters",
            "items": [
              {
                "type": "BindingWithDefault",
                "binding": {
                  "type": "ObjectBinding",
                  "properties": [
                    {
                      "type": "BindingPropertyIdentifier",
                      "binding": {
                        "type": "BindingIdentifier",
                        "name": "b",
                        "loc": {
                          "start": {
                            "line": 1,
                            "column": 14,
                            "offset": 14
                          },
                          "end": {
                            "line": 1,
                            "column": 15,
                            "offset": 15
                          }
                        }
                      },
                      "init": null,
                      "loc": {
                        "start": {
                          "line": 1,
                          "column": 14,
                          "offset": 14
                        },
                        "end": {
                          "line": 1,
                          "column": 15,
                          "offset": 15
                        }
                      }
                    }
                  ],
                  "rest": null,
                  "loc": {
                    "start": {
                      "line": 1,
                      "column": 13,
                      "offset": 13
                    },
                    "end": {
                      "line": 1,
                      "column": 16,
                      "offset": 16
                    }
                  }
                },
                "init": {
                  "type": "ObjectExpression",
                  "properties": [
                    {
                      "type": "DataProperty",
                      "name": {
                        "type": "StaticPropertyName",
                        "value": "b",
                        "loc": {
                          "start": {
                            "line": 1,
                            "column": 20,
                            "offset": 20
                          },
                          "end": {
                            "line": 1,
                            "column": 21,
                            "offset": 21
                          }
                        }
                      },
                      "expression": {
                        "type": "LiteralNumericExpression",
                        "value": 1,
                        "loc": {
                          "start": {
                            "line": 1,
                            "column": 23,
                            "offset": 23
                          },
                          "end": {
                            "line": 1,
                            "column": 24,
                            "offset": 24
                          }
                        }
                      },
                      "loc": {
                        "start": {
                          "line": 1,
                          "column": 20,
                          "offset": 20
                        },
                        "end": {
                          "line": 1,
                          "column": 24,
                          "offset": 24
                        }
                      }
                    }
                  ],
                  "loc": {
                    "start": {
                      "line": 1,
                      "column": 19,
                      "offset": 19
                    },
                    "end": {
                      "line": 1,
                      "column": 25,
                      "offset": 25
                    }
                  }
                },
                "loc": {
                  "start": {
                    "line": 1,
                    "column": 13,
                    "offset": 13
                  },
                  "end": {
                    "line": 1,
                    "column": 25,
                    "offset": 25
                  }
                }
              }
            ],
            "rest": null,
            "loc": {
              "start": {
                "line": 1,
                "column": 12,
                "offset": 12
              },
              "end": {
                "line": 1,
                "column": 26,
                "offset": 26
              }
            }
          },
          "body": {
            "type": "FunctionBody",
            "directives": [],
            "statements": [],
            "loc": {
              "start": {
                "line": 1,
                "column": 27,
                "offset": 27
              },
              "end": {
                "line": 1,
                "column": 29,
                "offset": 29
              }
            }
          },
          "loc": {
            "start": {
              "line": 1,
              "column": 4,
              "offset": 4
            },
            "end": {
              "line": 1,
              "column": 29,
              "offset": 29
            }
          }
        },
        "loc": {
          "start": {
            "line": 1,
            "column": 0,
            "offset": 0
          },
          "end": {
            "line": 1,
            "column": 29,
            "offset": 29
          }
        }
      },
      "loc": {
        "start": {
          "line": 1,
          "column": 0,
          "offset": 0
        },
        "end": {
          "line": 1,
          "column": 29,
          "offset": 29
        }
      }
    }
  ],
  "loc": {
    "start": {
      "line": 1,
      "column": 0,
      "offset": 0
    },
    "end": {
      "line": 1,
      "column": 29,
      "offset": 29
    }
  }
}