{
  "contractName": "IERC20",
  "abi": [
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "from",
          "type": "address"
        },
        {
          "indexed": true,
          "name": "to",
          "type": "address"
        },
        {
          "indexed": false,
          "name": "value",
          "type": "uint256"
        }
      ],
      "name": "Transfer",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "name": "owner",
          "type": "address"
        },
        {
          "indexed": true,
          "name": "spender",
          "type": "address"
        },
        {
          "indexed": false,
          "name": "value",
          "type": "uint256"
        }
      ],
      "name": "Approval",
      "type": "event"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "totalSupply",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "who",
          "type": "address"
        }
      ],
      "name": "balanceOf",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "owner",
          "type": "address"
        },
        {
          "name": "spender",
          "type": "address"
        }
      ],
      "name": "allowance",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "value",
          "type": "uint256"
        }
      ],
      "name": "transfer",
      "outputs": [
        {
          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "spender",
          "type": "address"
        },
        {
          "name": "value",
          "type": "uint256"
        }
      ],
      "name": "approve",
      "outputs": [
        {
          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "from",
          "type": "address"
        },
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "value",
          "type": "uint256"
        }
      ],
      "name": "transferFrom",
      "outputs": [
        {
          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    }
  ],
  "bytecode": "0x",
  "deployedBytecode": "0x",
  "sourceMap": "",
  "deployedSourceMap": "",
  "source": "pragma solidity ^0.4.24;\n\n/**\n * @title ERC20 interface\n * @dev see https://github.com/ethereum/EIPs/issues/20\n */\ninterface IERC20 {\n    function totalSupply() external view returns (uint256);\n\n    function balanceOf(address who) external view returns (uint256);\n\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    function transfer(address to, uint256 value) external returns (bool);\n\n    function approve(address spender, uint256 value) external returns (bool);\n\n    function transferFrom(address from, address to, uint256 value) external returns (bool);\n\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n",
  "sourcePath": "/home/ed/working/realitio-contracts-newtest/truffle/contracts/IERC20.sol",
  "ast": {
    "absolutePath": "/home/ed/working/realitio-contracts-newtest/truffle/contracts/IERC20.sol",
    "exportedSymbols": {
      "IERC20": [
        117
      ]
    },
    "id": 118,
    "nodeType": "SourceUnit",
    "nodes": [
      {
        "id": 50,
        "literals": [
          "solidity",
          "^",
          "0.4",
          ".24"
        ],
        "nodeType": "PragmaDirective",
        "src": "0:24:1"
      },
      {
        "baseContracts": [],
        "contractDependencies": [],
        "contractKind": "interface",
        "documentation": "@title ERC20 interface\n@dev see https://github.com/ethereum/EIPs/issues/20",
        "fullyImplemented": false,
        "id": 117,
        "linearizedBaseContracts": [
          117
        ],
        "name": "IERC20",
        "nodeType": "ContractDefinition",
        "nodes": [
          {
            "body": null,
            "documentation": null,
            "id": 55,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": true,
            "modifiers": [],
            "name": "totalSupply",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 51,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "158:2:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 54,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 53,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 55,
                  "src": "184:7:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 52,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "184:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "183:9:1"
            },
            "scope": 117,
            "src": "138:55:1",
            "stateMutability": "view",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 62,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": true,
            "modifiers": [],
            "name": "balanceOf",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 58,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 57,
                  "name": "who",
                  "nodeType": "VariableDeclaration",
                  "scope": 62,
                  "src": "218:11:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 56,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "218:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "217:13:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 61,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 60,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 62,
                  "src": "254:7:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 59,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "254:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "253:9:1"
            },
            "scope": 117,
            "src": "199:64:1",
            "stateMutability": "view",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 71,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": true,
            "modifiers": [],
            "name": "allowance",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 67,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 64,
                  "name": "owner",
                  "nodeType": "VariableDeclaration",
                  "scope": 71,
                  "src": "288:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 63,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "288:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 66,
                  "name": "spender",
                  "nodeType": "VariableDeclaration",
                  "scope": 71,
                  "src": "303:15:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 65,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "303:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "287:32:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 70,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 69,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 71,
                  "src": "343:7:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 68,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "343:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "342:9:1"
            },
            "scope": 117,
            "src": "269:83:1",
            "stateMutability": "view",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 80,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": false,
            "modifiers": [],
            "name": "transfer",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 76,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 73,
                  "name": "to",
                  "nodeType": "VariableDeclaration",
                  "scope": 80,
                  "src": "376:10:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 72,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "376:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 75,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 80,
                  "src": "388:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 74,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "388:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "375:27:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 79,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 78,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 80,
                  "src": "421:4:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 77,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "421:4:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "420:6:1"
            },
            "scope": 117,
            "src": "358:69:1",
            "stateMutability": "nonpayable",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 89,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": false,
            "modifiers": [],
            "name": "approve",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 85,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 82,
                  "name": "spender",
                  "nodeType": "VariableDeclaration",
                  "scope": 89,
                  "src": "450:15:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 81,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "450:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 84,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 89,
                  "src": "467:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 83,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "467:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "449:32:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 88,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 87,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 89,
                  "src": "500:4:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 86,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "500:4:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "499:6:1"
            },
            "scope": 117,
            "src": "433:73:1",
            "stateMutability": "nonpayable",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 100,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": false,
            "modifiers": [],
            "name": "transferFrom",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 96,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 91,
                  "name": "from",
                  "nodeType": "VariableDeclaration",
                  "scope": 100,
                  "src": "534:12:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 90,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "534:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 93,
                  "name": "to",
                  "nodeType": "VariableDeclaration",
                  "scope": 100,
                  "src": "548:10:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 92,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "548:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 95,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 100,
                  "src": "560:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 94,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "560:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "533:41:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 99,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 98,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 100,
                  "src": "593:4:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 97,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "593:4:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "592:6:1"
            },
            "scope": 117,
            "src": "512:87:1",
            "stateMutability": "nonpayable",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "anonymous": false,
            "documentation": null,
            "id": 108,
            "name": "Transfer",
            "nodeType": "EventDefinition",
            "parameters": {
              "id": 107,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 102,
                  "indexed": true,
                  "name": "from",
                  "nodeType": "VariableDeclaration",
                  "scope": 108,
                  "src": "620:20:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 101,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "620:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 104,
                  "indexed": true,
                  "name": "to",
                  "nodeType": "VariableDeclaration",
                  "scope": 108,
                  "src": "642:18:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 103,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "642:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 106,
                  "indexed": false,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 108,
                  "src": "662:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 105,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "662:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "619:57:1"
            },
            "src": "605:72:1"
          },
          {
            "anonymous": false,
            "documentation": null,
            "id": 116,
            "name": "Approval",
            "nodeType": "EventDefinition",
            "parameters": {
              "id": 115,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 110,
                  "indexed": true,
                  "name": "owner",
                  "nodeType": "VariableDeclaration",
                  "scope": 116,
                  "src": "698:21:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 109,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "698:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 112,
                  "indexed": true,
                  "name": "spender",
                  "nodeType": "VariableDeclaration",
                  "scope": 116,
                  "src": "721:23:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 111,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "721:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 114,
                  "indexed": false,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 116,
                  "src": "746:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 113,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "746:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "697:63:1"
            },
            "src": "683:78:1"
          }
        ],
        "scope": 118,
        "src": "115:648:1"
      }
    ],
    "src": "0:764:1"
  },
  "legacyAST": {
    "absolutePath": "/home/ed/working/realitio-contracts-newtest/truffle/contracts/IERC20.sol",
    "exportedSymbols": {
      "IERC20": [
        117
      ]
    },
    "id": 118,
    "nodeType": "SourceUnit",
    "nodes": [
      {
        "id": 50,
        "literals": [
          "solidity",
          "^",
          "0.4",
          ".24"
        ],
        "nodeType": "PragmaDirective",
        "src": "0:24:1"
      },
      {
        "baseContracts": [],
        "contractDependencies": [],
        "contractKind": "interface",
        "documentation": "@title ERC20 interface\n@dev see https://github.com/ethereum/EIPs/issues/20",
        "fullyImplemented": false,
        "id": 117,
        "linearizedBaseContracts": [
          117
        ],
        "name": "IERC20",
        "nodeType": "ContractDefinition",
        "nodes": [
          {
            "body": null,
            "documentation": null,
            "id": 55,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": true,
            "modifiers": [],
            "name": "totalSupply",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 51,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "158:2:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 54,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 53,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 55,
                  "src": "184:7:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 52,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "184:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "183:9:1"
            },
            "scope": 117,
            "src": "138:55:1",
            "stateMutability": "view",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 62,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": true,
            "modifiers": [],
            "name": "balanceOf",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 58,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 57,
                  "name": "who",
                  "nodeType": "VariableDeclaration",
                  "scope": 62,
                  "src": "218:11:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 56,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "218:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "217:13:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 61,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 60,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 62,
                  "src": "254:7:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 59,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "254:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "253:9:1"
            },
            "scope": 117,
            "src": "199:64:1",
            "stateMutability": "view",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 71,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": true,
            "modifiers": [],
            "name": "allowance",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 67,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 64,
                  "name": "owner",
                  "nodeType": "VariableDeclaration",
                  "scope": 71,
                  "src": "288:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 63,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "288:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 66,
                  "name": "spender",
                  "nodeType": "VariableDeclaration",
                  "scope": 71,
                  "src": "303:15:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 65,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "303:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "287:32:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 70,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 69,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 71,
                  "src": "343:7:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 68,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "343:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "342:9:1"
            },
            "scope": 117,
            "src": "269:83:1",
            "stateMutability": "view",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 80,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": false,
            "modifiers": [],
            "name": "transfer",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 76,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 73,
                  "name": "to",
                  "nodeType": "VariableDeclaration",
                  "scope": 80,
                  "src": "376:10:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 72,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "376:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 75,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 80,
                  "src": "388:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 74,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "388:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "375:27:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 79,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 78,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 80,
                  "src": "421:4:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 77,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "421:4:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "420:6:1"
            },
            "scope": 117,
            "src": "358:69:1",
            "stateMutability": "nonpayable",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 89,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": false,
            "modifiers": [],
            "name": "approve",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 85,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 82,
                  "name": "spender",
                  "nodeType": "VariableDeclaration",
                  "scope": 89,
                  "src": "450:15:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 81,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "450:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 84,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 89,
                  "src": "467:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 83,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "467:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "449:32:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 88,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 87,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 89,
                  "src": "500:4:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 86,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "500:4:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "499:6:1"
            },
            "scope": 117,
            "src": "433:73:1",
            "stateMutability": "nonpayable",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": null,
            "id": 100,
            "implemented": false,
            "isConstructor": false,
            "isDeclaredConst": false,
            "modifiers": [],
            "name": "transferFrom",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 96,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 91,
                  "name": "from",
                  "nodeType": "VariableDeclaration",
                  "scope": 100,
                  "src": "534:12:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 90,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "534:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 93,
                  "name": "to",
                  "nodeType": "VariableDeclaration",
                  "scope": 100,
                  "src": "548:10:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 92,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "548:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 95,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 100,
                  "src": "560:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 94,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "560:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "533:41:1"
            },
            "payable": false,
            "returnParameters": {
              "id": 99,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 98,
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 100,
                  "src": "593:4:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 97,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "593:4:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "592:6:1"
            },
            "scope": 117,
            "src": "512:87:1",
            "stateMutability": "nonpayable",
            "superFunction": null,
            "visibility": "external"
          },
          {
            "anonymous": false,
            "documentation": null,
            "id": 108,
            "name": "Transfer",
            "nodeType": "EventDefinition",
            "parameters": {
              "id": 107,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 102,
                  "indexed": true,
                  "name": "from",
                  "nodeType": "VariableDeclaration",
                  "scope": 108,
                  "src": "620:20:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 101,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "620:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 104,
                  "indexed": true,
                  "name": "to",
                  "nodeType": "VariableDeclaration",
                  "scope": 108,
                  "src": "642:18:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 103,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "642:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 106,
                  "indexed": false,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 108,
                  "src": "662:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 105,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "662:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "619:57:1"
            },
            "src": "605:72:1"
          },
          {
            "anonymous": false,
            "documentation": null,
            "id": 116,
            "name": "Approval",
            "nodeType": "EventDefinition",
            "parameters": {
              "id": 115,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 110,
                  "indexed": true,
                  "name": "owner",
                  "nodeType": "VariableDeclaration",
                  "scope": 116,
                  "src": "698:21:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 109,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "698:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 112,
                  "indexed": true,
                  "name": "spender",
                  "nodeType": "VariableDeclaration",
                  "scope": 116,
                  "src": "721:23:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 111,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "721:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 114,
                  "indexed": false,
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "scope": 116,
                  "src": "746:13:1",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 113,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "746:7:1",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "697:63:1"
            },
            "src": "683:78:1"
          }
        ],
        "scope": 118,
        "src": "115:648:1"
      }
    ],
    "src": "0:764:1"
  },
  "compiler": {
    "name": "solc",
    "version": "0.4.25+commit.59dbf8f1.Emscripten.clang"
  },
  "networks": {},
  "schemaVersion": "2.0.2",
  "updatedAt": "2019-06-07T22:14:37.027Z"
}