{
  "fileName": "IERC20.sol",
  "contractName": "IERC20",
  "source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.7.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `recipient`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address recipient, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `sender` to `recipient` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n}\n",
  "sourcePath": "contracts/token/ERC20/IERC20.sol",
  "sourceMap": "",
  "deployedSourceMap": "",
  "abi": [
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "owner",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "spender",
          "type": "address"
        },
        {
          "indexed": false,
          "internalType": "uint256",
          "name": "value",
          "type": "uint256"
        }
      ],
      "name": "Approval",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "from",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "to",
          "type": "address"
        },
        {
          "indexed": false,
          "internalType": "uint256",
          "name": "value",
          "type": "uint256"
        }
      ],
      "name": "Transfer",
      "type": "event"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "owner",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "spender",
          "type": "address"
        }
      ],
      "name": "allowance",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "spender",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "amount",
          "type": "uint256"
        }
      ],
      "name": "approve",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "account",
          "type": "address"
        }
      ],
      "name": "balanceOf",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [],
      "name": "totalSupply",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "recipient",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "amount",
          "type": "uint256"
        }
      ],
      "name": "transfer",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "sender",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "recipient",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "amount",
          "type": "uint256"
        }
      ],
      "name": "transferFrom",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    }
  ],
  "ast": {
    "absolutePath": "contracts/token/ERC20/IERC20.sol",
    "exportedSymbols": {
      "IERC20": [
        9779
      ]
    },
    "id": 9780,
    "license": "MIT",
    "nodeType": "SourceUnit",
    "nodes": [
      {
        "id": 9703,
        "literals": [
          "solidity",
          "^",
          "0.7",
          ".0"
        ],
        "nodeType": "PragmaDirective",
        "src": "33:23:89"
      },
      {
        "abstract": false,
        "baseContracts": [],
        "contractDependencies": [],
        "contractKind": "interface",
        "documentation": {
          "id": 9704,
          "nodeType": "StructuredDocumentation",
          "src": "58:70:89",
          "text": " @dev Interface of the ERC20 standard as defined in the EIP."
        },
        "fullyImplemented": false,
        "id": 9779,
        "linearizedBaseContracts": [
          9779
        ],
        "name": "IERC20",
        "nodeType": "ContractDefinition",
        "nodes": [
          {
            "body": null,
            "documentation": {
              "id": 9705,
              "nodeType": "StructuredDocumentation",
              "src": "152:66:89",
              "text": " @dev Returns the amount of tokens in existence."
            },
            "functionSelector": "18160ddd",
            "id": 9710,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "totalSupply",
            "nodeType": "FunctionDefinition",
            "overrides": null,
            "parameters": {
              "id": 9706,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "243:2:89"
            },
            "returnParameters": {
              "id": 9709,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9708,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9710,
                  "src": "269:7:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 9707,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "269:7:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "268:9:89"
            },
            "scope": 9779,
            "src": "223:55:89",
            "stateMutability": "view",
            "virtual": false,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": {
              "id": 9711,
              "nodeType": "StructuredDocumentation",
              "src": "284:72:89",
              "text": " @dev Returns the amount of tokens owned by `account`."
            },
            "functionSelector": "70a08231",
            "id": 9718,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "balanceOf",
            "nodeType": "FunctionDefinition",
            "overrides": null,
            "parameters": {
              "id": 9714,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9713,
                  "mutability": "mutable",
                  "name": "account",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9718,
                  "src": "380:15:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9712,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "380:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "379:17:89"
            },
            "returnParameters": {
              "id": 9717,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9716,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9718,
                  "src": "420:7:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 9715,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "420:7:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "419:9:89"
            },
            "scope": 9779,
            "src": "361:68:89",
            "stateMutability": "view",
            "virtual": false,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": {
              "id": 9719,
              "nodeType": "StructuredDocumentation",
              "src": "435:209:89",
              "text": " @dev Moves `amount` tokens from the caller's account to `recipient`.\n Returns a boolean value indicating whether the operation succeeded.\n Emits a {Transfer} event."
            },
            "functionSelector": "a9059cbb",
            "id": 9728,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "transfer",
            "nodeType": "FunctionDefinition",
            "overrides": null,
            "parameters": {
              "id": 9724,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9721,
                  "mutability": "mutable",
                  "name": "recipient",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9728,
                  "src": "667:17:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9720,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "667:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 9723,
                  "mutability": "mutable",
                  "name": "amount",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9728,
                  "src": "686:14:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 9722,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "686:7:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "666:35:89"
            },
            "returnParameters": {
              "id": 9727,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9726,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9728,
                  "src": "720:4:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 9725,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "720:4:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "719:6:89"
            },
            "scope": 9779,
            "src": "649:77:89",
            "stateMutability": "nonpayable",
            "virtual": false,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": {
              "id": 9729,
              "nodeType": "StructuredDocumentation",
              "src": "732:264:89",
              "text": " @dev Returns the remaining number of tokens that `spender` will be\n allowed to spend on behalf of `owner` through {transferFrom}. This is\n zero by default.\n This value changes when {approve} or {transferFrom} are called."
            },
            "functionSelector": "dd62ed3e",
            "id": 9738,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "allowance",
            "nodeType": "FunctionDefinition",
            "overrides": null,
            "parameters": {
              "id": 9734,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9731,
                  "mutability": "mutable",
                  "name": "owner",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9738,
                  "src": "1020:13:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9730,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "1020:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 9733,
                  "mutability": "mutable",
                  "name": "spender",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9738,
                  "src": "1035:15:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9732,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "1035:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "1019:32:89"
            },
            "returnParameters": {
              "id": 9737,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9736,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9738,
                  "src": "1075:7:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 9735,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "1075:7:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "1074:9:89"
            },
            "scope": 9779,
            "src": "1001:83:89",
            "stateMutability": "view",
            "virtual": false,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": {
              "id": 9739,
              "nodeType": "StructuredDocumentation",
              "src": "1090:642:89",
              "text": " @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n Returns a boolean value indicating whether the operation succeeded.\n IMPORTANT: Beware that changing an allowance with this method brings the risk\n that someone may use both the old and the new allowance by unfortunate\n transaction ordering. One possible solution to mitigate this race\n condition is to first reduce the spender's allowance to 0 and set the\n desired value afterwards:\n https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n Emits an {Approval} event."
            },
            "functionSelector": "095ea7b3",
            "id": 9748,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "approve",
            "nodeType": "FunctionDefinition",
            "overrides": null,
            "parameters": {
              "id": 9744,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9741,
                  "mutability": "mutable",
                  "name": "spender",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9748,
                  "src": "1754:15:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9740,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "1754:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 9743,
                  "mutability": "mutable",
                  "name": "amount",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9748,
                  "src": "1771:14:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 9742,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "1771:7:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "1753:33:89"
            },
            "returnParameters": {
              "id": 9747,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9746,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9748,
                  "src": "1805:4:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 9745,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "1805:4:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "1804:6:89"
            },
            "scope": 9779,
            "src": "1737:74:89",
            "stateMutability": "nonpayable",
            "virtual": false,
            "visibility": "external"
          },
          {
            "body": null,
            "documentation": {
              "id": 9749,
              "nodeType": "StructuredDocumentation",
              "src": "1817:296:89",
              "text": " @dev Moves `amount` tokens from `sender` to `recipient` using the\n allowance mechanism. `amount` is then deducted from the caller's\n allowance.\n Returns a boolean value indicating whether the operation succeeded.\n Emits a {Transfer} event."
            },
            "functionSelector": "23b872dd",
            "id": 9760,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "transferFrom",
            "nodeType": "FunctionDefinition",
            "overrides": null,
            "parameters": {
              "id": 9756,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9751,
                  "mutability": "mutable",
                  "name": "sender",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9760,
                  "src": "2140:14:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9750,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "2140:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 9753,
                  "mutability": "mutable",
                  "name": "recipient",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9760,
                  "src": "2156:17:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9752,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "2156:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 9755,
                  "mutability": "mutable",
                  "name": "amount",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9760,
                  "src": "2175:14:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 9754,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "2175:7:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "2139:51:89"
            },
            "returnParameters": {
              "id": 9759,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9758,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9760,
                  "src": "2209:4:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_bool",
                    "typeString": "bool"
                  },
                  "typeName": {
                    "id": 9757,
                    "name": "bool",
                    "nodeType": "ElementaryTypeName",
                    "src": "2209:4:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_bool",
                      "typeString": "bool"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "2208:6:89"
            },
            "scope": 9779,
            "src": "2118:97:89",
            "stateMutability": "nonpayable",
            "virtual": false,
            "visibility": "external"
          },
          {
            "anonymous": false,
            "documentation": {
              "id": 9761,
              "nodeType": "StructuredDocumentation",
              "src": "2221:158:89",
              "text": " @dev Emitted when `value` tokens are moved from one account (`from`) to\n another (`to`).\n Note that `value` may be zero."
            },
            "id": 9769,
            "name": "Transfer",
            "nodeType": "EventDefinition",
            "parameters": {
              "id": 9768,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9763,
                  "indexed": true,
                  "mutability": "mutable",
                  "name": "from",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9769,
                  "src": "2399:20:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9762,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "2399:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 9765,
                  "indexed": true,
                  "mutability": "mutable",
                  "name": "to",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9769,
                  "src": "2421:18:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9764,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "2421:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 9767,
                  "indexed": false,
                  "mutability": "mutable",
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9769,
                  "src": "2441:13:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 9766,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "2441:7:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "2398:57:89"
            },
            "src": "2384:72:89"
          },
          {
            "anonymous": false,
            "documentation": {
              "id": 9770,
              "nodeType": "StructuredDocumentation",
              "src": "2462:148:89",
              "text": " @dev Emitted when the allowance of a `spender` for an `owner` is set by\n a call to {approve}. `value` is the new allowance."
            },
            "id": 9778,
            "name": "Approval",
            "nodeType": "EventDefinition",
            "parameters": {
              "id": 9777,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 9772,
                  "indexed": true,
                  "mutability": "mutable",
                  "name": "owner",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9778,
                  "src": "2630:21:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9771,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "2630:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 9774,
                  "indexed": true,
                  "mutability": "mutable",
                  "name": "spender",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9778,
                  "src": "2653:23:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 9773,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "2653:7:89",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 9776,
                  "indexed": false,
                  "mutability": "mutable",
                  "name": "value",
                  "nodeType": "VariableDeclaration",
                  "overrides": null,
                  "scope": 9778,
                  "src": "2678:13:89",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 9775,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "2678:7:89",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "value": null,
                  "visibility": "internal"
                }
              ],
              "src": "2629:63:89"
            },
            "src": "2615:78:89"
          }
        ],
        "scope": 9780,
        "src": "129:2566:89"
      }
    ],
    "src": "33:2663:89"
  },
  "bytecode": "0x",
  "deployedBytecode": "0x",
  "compiler": {
    "name": "solc",
    "version": "0.7.0+commit.9e61f92b.Emscripten.clang",
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "evmVersion": "petersburg"
  }
}