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                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 35993,
                  "mutability": "mutable",
                  "name": "_index",
                  "nameLocation": "24813:6:40",
                  "nodeType": "VariableDeclaration",
                  "scope": 36000,
                  "src": "24805:14:40",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 35992,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "24805:7:40",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "24740:83:40"
            },
            "returnParameters": {
              "id": 35997,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 35996,
                  "mutability": "mutable",
                  "name": "_current",
                  "nameLocation": "24855:8:40",
                  "nodeType": "VariableDeclaration",
                  "scope": 36000,
                  "src": "24847:16:40",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bytes32",
                    "typeString": "bytes32"
                  },
                  "typeName": {
                    "id": 35995,
                    "name": "bytes32",
                    "nodeType": "ElementaryTypeName",
                    "src": "24847:7:40",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bytes32",
                      "typeString": "bytes32"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "24846:18:40"
            },
            "scope": 36001,
            "stateMutability": "pure",
            "virtual": false,
            "visibility": "internal"
          }
        ],
        "abstract": false,
        "baseContracts": [],
        "canonicalName": "MerkleLib",
        "contractDependencies": [],
        "contractKind": "library",
        "documentation": {
          "id": 35763,
          "nodeType": "StructuredDocumentation",
          "src": "72:139:40",
          "text": " @title MerkleLib\n @author Illusory Systems Inc.\n @notice An incremental merkle tree modeled on the eth2 deposit contract."
        },
        "fullyImplemented": true,
        "linearizedBaseContracts": [
          36001
        ],
        "name": "MerkleLib",
        "nameLocation": "220:9:40",
        "scope": 36002,
        "usedErrors": [
          35765
        ]
      }
    ],
    "license": "MIT OR Apache-2.0"
  },
  "id": 40
}