{
  "contractName": "IERC721Enumerable",
  "abi": [
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "owner",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "approved",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "uint256",
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "Approval",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "owner",
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        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "operator",
          "type": "address"
        },
        {
          "indexed": false,
          "internalType": "bool",
          "name": "approved",
          "type": "bool"
        }
      ],
      "name": "ApprovalForAll",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "from",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "address",
          "name": "to",
          "type": "address"
        },
        {
          "indexed": true,
          "internalType": "uint256",
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "Transfer",
      "type": "event"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "to",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "approve",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "owner",
          "type": "address"
        }
      ],
      "name": "balanceOf",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "balance",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "uint256",
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "getApproved",
      "outputs": [
        {
          "internalType": "address",
          "name": "operator",
          "type": "address"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "owner",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "operator",
          "type": "address"
        }
      ],
      "name": "isApprovedForAll",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "uint256",
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "ownerOf",
      "outputs": [
        {
          "internalType": "address",
          "name": "owner",
          "type": "address"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "from",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "to",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "safeTransferFrom",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "from",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "to",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "tokenId",
          "type": "uint256"
        },
        {
          "internalType": "bytes",
          "name": "data",
          "type": "bytes"
        }
      ],
      "name": "safeTransferFrom",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "operator",
          "type": "address"
        },
        {
          "internalType": "bool",
          "name": "_approved",
          "type": "bool"
        }
      ],
      "name": "setApprovalForAll",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "bytes4",
          "name": "interfaceId",
          "type": "bytes4"
        }
      ],
      "name": "supportsInterface",
      "outputs": [
        {
          "internalType": "bool",
          "name": "",
          "type": "bool"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "from",
          "type": "address"
        },
        {
          "internalType": "address",
          "name": "to",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "name": "transferFrom",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [],
      "name": "totalSupply",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "owner",
          "type": "address"
        },
        {
          "internalType": "uint256",
          "name": "index",
          "type": "uint256"
        }
      ],
      "name": "tokenOfOwnerByIndex",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "tokenId",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "uint256",
          "name": "index",
          "type": "uint256"
        }
      ],
      "name": "tokenByIndex",
      "outputs": [
        {
          "internalType": "uint256",
          "name": "",
          "type": "uint256"
        }
      ],
      "stateMutability": "view",
      "type": "function"
    }
  ],
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The approval is cleared when the token is transferred. Only a single account can be approved at a time, so approving the zero address clears previous approvals. Requirements: - The caller must own the token or be an approved operator. - `tokenId` must exist. Emits an {Approval} event.\"},\"balanceOf(address)\":{\"details\":\"Returns the number of tokens in ``owner``'s account.\"},\"getApproved(uint256)\":{\"details\":\"Returns the account approved for `tokenId` token. Requirements: - `tokenId` must exist.\"},\"isApprovedForAll(address,address)\":{\"details\":\"Returns if the `operator` is allowed to manage all of the assets of `owner`. See {setApprovalForAll}\"},\"ownerOf(uint256)\":{\"details\":\"Returns the owner of the `tokenId` token. Requirements: - `tokenId` must exist.\"},\"safeTransferFrom(address,address,uint256)\":{\"details\":\"Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients are aware of the ERC721 protocol to prevent tokens from being forever locked. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must exist and be owned by `from`. - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event.\"},\"safeTransferFrom(address,address,uint256,bytes)\":{\"details\":\"Safely transfers `tokenId` token from `from` to `to`. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must exist and be owned by `from`. - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event.\"},\"setApprovalForAll(address,bool)\":{\"details\":\"Approve or remove `operator` as an operator for the caller. Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. Requirements: - The `operator` cannot be the caller. Emits an {ApprovalForAll} event.\"},\"supportsInterface(bytes4)\":{\"details\":\"Returns true if this contract implements the interface defined by `interfaceId`. See the corresponding https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] to learn more about how these ids are created. This function call must use less than 30 000 gas.\"},\"tokenByIndex(uint256)\":{\"details\":\"Returns a token ID at a given `index` of all the tokens stored by the contract. Use along with {totalSupply} to enumerate all tokens.\"},\"tokenOfOwnerByIndex(address,uint256)\":{\"details\":\"Returns a token ID owned by `owner` at a given `index` of its token list. Use along with {balanceOf} to enumerate all of ``owner``'s tokens.\"},\"totalSupply()\":{\"details\":\"Returns the total amount of tokens stored by the contract.\"},\"transferFrom(address,address,uint256)\":{\"details\":\"Transfers `tokenId` token from `from` to `to`. WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must be owned by `from`. - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. Emits a {Transfer} event.\"}},\"title\":\"ERC-721 Non-Fungible Token Standard, optional enumeration extension\",\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol\":\"IERC721Enumerable\"},\"evmVersion\":\"istanbul\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":false,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts/token/ERC721/IERC721.sol\":{\"keccak256\":\"0xc1c941ad1e580b4623007305921efe2f26fc7320a4edc226234dd707c658a428\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://473e11d739868e0d9f48254ccf84ba63290d6a2321d59a37b74c244a27f9cad7\",\"dweb:/ipfs/QmUGzDmecP936jzgM7SYyGwR1YgBGsveoHHJTbDfB8jbGF\"]},\"@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol\":{\"keccak256\":\"0xccb7e6475afcb1c5cb13b3fbf1329c10b93620a9b66393388066683915271a78\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://df5776161e3226ac31bfb919dfe5f42e173a08293fadb4ffa90ffb55e76869d7\",\"dweb:/ipfs/QmXtKfvWj1v6oha8urbnw4RmjSpmQjZsGGqK5qk5trK4nH\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0xa28007762d9da9db878dd421960c8cb9a10471f47ab5c1b3309bfe48e9e79ff4\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://796ab6e88af7bf0e78def0f059310c903af6a312b565344e0ff524a0f26e81c6\",\"dweb:/ipfs/QmcsVgLgzWdor3UnAztUkXKNGcysm1MPneWksF72AvnwBx\"]}},\"version\":1}",
  "bytecode": "0x",
  "deployedBytecode": "0x",
  "immutableReferences": {},
  "generatedSources": [],
  "deployedGeneratedSources": [],
  "sourceMap": "",
  "deployedSourceMap": "",
  "source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Enumerable is IERC721 {\n\n    /**\n     * @dev Returns the total amount of tokens stored by the contract.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.\n     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.\n     */\n    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);\n\n    /**\n     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.\n     * Use along with {totalSupply} to enumerate all tokens.\n     */\n    function tokenByIndex(uint256 index) external view returns (uint256);\n}\n",
  "sourcePath": "@openzeppelin\\contracts\\token\\ERC721\\extensions\\IERC721Enumerable.sol",
  "ast": {
    "absolutePath": "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol",
    "exportedSymbols": {
      "IERC165": [
        4320
      ],
      "IERC721": [
        3497
      ],
      "IERC721Enumerable": [
        3674
      ]
    },
    "id": 3675,
    "license": "MIT",
    "nodeType": "SourceUnit",
    "nodes": [
      {
        "id": 3645,
        "literals": [
          "solidity",
          "^",
          "0.8",
          ".0"
        ],
        "nodeType": "PragmaDirective",
        "src": "33:23:9"
      },
      {
        "absolutePath": "@openzeppelin/contracts/token/ERC721/IERC721.sol",
        "file": "../IERC721.sol",
        "id": 3646,
        "nodeType": "ImportDirective",
        "scope": 3675,
        "sourceUnit": 3498,
        "src": "58:24:9",
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "abstract": false,
        "baseContracts": [
          {
            "baseName": {
              "id": 3648,
              "name": "IERC721",
              "nodeType": "IdentifierPath",
              "referencedDeclaration": 3497,
              "src": "252:7:9"
            },
            "id": 3649,
            "nodeType": "InheritanceSpecifier",
            "src": "252:7:9"
          }
        ],
        "contractDependencies": [
          3497,
          4320
        ],
        "contractKind": "interface",
        "documentation": {
          "id": 3647,
          "nodeType": "StructuredDocumentation",
          "src": "84:136:9",
          "text": " @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n @dev See https://eips.ethereum.org/EIPS/eip-721"
        },
        "fullyImplemented": false,
        "id": 3674,
        "linearizedBaseContracts": [
          3674,
          3497,
          4320
        ],
        "name": "IERC721Enumerable",
        "nodeType": "ContractDefinition",
        "nodes": [
          {
            "documentation": {
              "id": 3650,
              "nodeType": "StructuredDocumentation",
              "src": "267:82:9",
              "text": " @dev Returns the total amount of tokens stored by the contract."
            },
            "functionSelector": "18160ddd",
            "id": 3655,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "totalSupply",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 3651,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "374:2:9"
            },
            "returnParameters": {
              "id": 3654,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 3653,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 3655,
                  "src": "400:7:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 3652,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "400:7:9",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "399:9:9"
            },
            "scope": 3674,
            "src": "354:55:9",
            "stateMutability": "view",
            "virtual": false,
            "visibility": "external"
          },
          {
            "documentation": {
              "id": 3656,
              "nodeType": "StructuredDocumentation",
              "src": "415:171:9",
              "text": " @dev Returns a token ID owned by `owner` at a given `index` of its token list.\n Use along with {balanceOf} to enumerate all of ``owner``'s tokens."
            },
            "functionSelector": "2f745c59",
            "id": 3665,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "tokenOfOwnerByIndex",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 3661,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 3658,
                  "mutability": "mutable",
                  "name": "owner",
                  "nodeType": "VariableDeclaration",
                  "scope": 3665,
                  "src": "620:13:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 3657,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "620:7:9",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 3660,
                  "mutability": "mutable",
                  "name": "index",
                  "nodeType": "VariableDeclaration",
                  "scope": 3665,
                  "src": "635:13:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 3659,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "635:7:9",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "619:30:9"
            },
            "returnParameters": {
              "id": 3664,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 3663,
                  "mutability": "mutable",
                  "name": "tokenId",
                  "nodeType": "VariableDeclaration",
                  "scope": 3665,
                  "src": "673:15:9",
                  "stateVariable": false,
                  "storageLocation": "default",
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                  },
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                }
              ],
              "src": "672:17:9"
            },
            "scope": 3674,
            "src": "591:99:9",
            "stateMutability": "view",
            "virtual": false,
            "visibility": "external"
          },
          {
            "documentation": {
              "id": 3666,
              "nodeType": "StructuredDocumentation",
              "src": "696:164:9",
              "text": " @dev Returns a token ID at a given `index` of all the tokens stored by the contract.\n Use along with {totalSupply} to enumerate all tokens."
            },
            "functionSelector": "4f6ccce7",
            "id": 3673,
            "implemented": false,
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            "modifiers": [],
            "name": "tokenByIndex",
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                  "src": "887:13:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
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                    "name": "uint256",
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                      "typeIdentifier": "t_uint256",
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                  },
                  "visibility": "internal"
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            "returnParameters": {
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              "nodeType": "ParameterList",
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                  "id": 3671,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
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                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
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                  "typeName": {
                    "id": 3670,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "925:7:9",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
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            "src": "865:69:9",
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        ],
        "scope": 3675,
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    ],
    "src": "33:904:9"
  },
  "legacyAST": {
    "absolutePath": "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol",
    "exportedSymbols": {
      "IERC165": [
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      "IERC721": [
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      "IERC721Enumerable": [
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    },
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    "license": "MIT",
    "nodeType": "SourceUnit",
    "nodes": [
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        "id": 3645,
        "literals": [
          "solidity",
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        "nodeType": "PragmaDirective",
        "src": "33:23:9"
      },
      {
        "absolutePath": "@openzeppelin/contracts/token/ERC721/IERC721.sol",
        "file": "../IERC721.sol",
        "id": 3646,
        "nodeType": "ImportDirective",
        "scope": 3675,
        "sourceUnit": 3498,
        "src": "58:24:9",
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "abstract": false,
        "baseContracts": [
          {
            "baseName": {
              "id": 3648,
              "name": "IERC721",
              "nodeType": "IdentifierPath",
              "referencedDeclaration": 3497,
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            "id": 3649,
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        ],
        "contractDependencies": [
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        ],
        "contractKind": "interface",
        "documentation": {
          "id": 3647,
          "nodeType": "StructuredDocumentation",
          "src": "84:136:9",
          "text": " @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n @dev See https://eips.ethereum.org/EIPS/eip-721"
        },
        "fullyImplemented": false,
        "id": 3674,
        "linearizedBaseContracts": [
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          3497,
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        ],
        "name": "IERC721Enumerable",
        "nodeType": "ContractDefinition",
        "nodes": [
          {
            "documentation": {
              "id": 3650,
              "nodeType": "StructuredDocumentation",
              "src": "267:82:9",
              "text": " @dev Returns the total amount of tokens stored by the contract."
            },
            "functionSelector": "18160ddd",
            "id": 3655,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "totalSupply",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 3651,
              "nodeType": "ParameterList",
              "parameters": [],
              "src": "374:2:9"
            },
            "returnParameters": {
              "id": 3654,
              "nodeType": "ParameterList",
              "parameters": [
                {
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                  "id": 3653,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 3655,
                  "src": "400:7:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 3652,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "400:7:9",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
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            },
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            "src": "354:55:9",
            "stateMutability": "view",
            "virtual": false,
            "visibility": "external"
          },
          {
            "documentation": {
              "id": 3656,
              "nodeType": "StructuredDocumentation",
              "src": "415:171:9",
              "text": " @dev Returns a token ID owned by `owner` at a given `index` of its token list.\n Use along with {balanceOf} to enumerate all of ``owner``'s tokens."
            },
            "functionSelector": "2f745c59",
            "id": 3665,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "tokenOfOwnerByIndex",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 3661,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 3658,
                  "mutability": "mutable",
                  "name": "owner",
                  "nodeType": "VariableDeclaration",
                  "scope": 3665,
                  "src": "620:13:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_address",
                    "typeString": "address"
                  },
                  "typeName": {
                    "id": 3657,
                    "name": "address",
                    "nodeType": "ElementaryTypeName",
                    "src": "620:7:9",
                    "stateMutability": "nonpayable",
                    "typeDescriptions": {
                      "typeIdentifier": "t_address",
                      "typeString": "address"
                    }
                  },
                  "visibility": "internal"
                },
                {
                  "constant": false,
                  "id": 3660,
                  "mutability": "mutable",
                  "name": "index",
                  "nodeType": "VariableDeclaration",
                  "scope": 3665,
                  "src": "635:13:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 3659,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "635:7:9",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "619:30:9"
            },
            "returnParameters": {
              "id": 3664,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 3663,
                  "mutability": "mutable",
                  "name": "tokenId",
                  "nodeType": "VariableDeclaration",
                  "scope": 3665,
                  "src": "673:15:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
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                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
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              ],
              "src": "672:17:9"
            },
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            "src": "591:99:9",
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            "visibility": "external"
          },
          {
            "documentation": {
              "id": 3666,
              "nodeType": "StructuredDocumentation",
              "src": "696:164:9",
              "text": " @dev Returns a token ID at a given `index` of all the tokens stored by the contract.\n Use along with {totalSupply} to enumerate all tokens."
            },
            "functionSelector": "4f6ccce7",
            "id": 3673,
            "implemented": false,
            "kind": "function",
            "modifiers": [],
            "name": "tokenByIndex",
            "nodeType": "FunctionDefinition",
            "parameters": {
              "id": 3669,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 3668,
                  "mutability": "mutable",
                  "name": "index",
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                  "scope": 3673,
                  "src": "887:13:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
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                    "id": 3667,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "887:7:9",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
                  "visibility": "internal"
                }
              ],
              "src": "886:15:9"
            },
            "returnParameters": {
              "id": 3672,
              "nodeType": "ParameterList",
              "parameters": [
                {
                  "constant": false,
                  "id": 3671,
                  "mutability": "mutable",
                  "name": "",
                  "nodeType": "VariableDeclaration",
                  "scope": 3673,
                  "src": "925:7:9",
                  "stateVariable": false,
                  "storageLocation": "default",
                  "typeDescriptions": {
                    "typeIdentifier": "t_uint256",
                    "typeString": "uint256"
                  },
                  "typeName": {
                    "id": 3670,
                    "name": "uint256",
                    "nodeType": "ElementaryTypeName",
                    "src": "925:7:9",
                    "typeDescriptions": {
                      "typeIdentifier": "t_uint256",
                      "typeString": "uint256"
                    }
                  },
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              ],
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          }
        ],
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    ],
    "src": "33:904:9"
  },
  "compiler": {
    "name": "solc",
    "version": "0.8.0+commit.c7dfd78e.Emscripten.clang"
  },
  "networks": {},
  "schemaVersion": "3.3.4",
  "updatedAt": "2021-05-19T08:21:33.606Z",
  "devdoc": {
    "details": "See https://eips.ethereum.org/EIPS/eip-721",
    "kind": "dev",
    "methods": {
      "approve(address,uint256)": {
        "details": "Gives permission to `to` to transfer `tokenId` token to another account. The approval is cleared when the token is transferred. Only a single account can be approved at a time, so approving the zero address clears previous approvals. Requirements: - The caller must own the token or be an approved operator. - `tokenId` must exist. Emits an {Approval} event."
      },
      "balanceOf(address)": {
        "details": "Returns the number of tokens in ``owner``'s account."
      },
      "getApproved(uint256)": {
        "details": "Returns the account approved for `tokenId` token. Requirements: - `tokenId` must exist."
      },
      "isApprovedForAll(address,address)": {
        "details": "Returns if the `operator` is allowed to manage all of the assets of `owner`. See {setApprovalForAll}"
      },
      "ownerOf(uint256)": {
        "details": "Returns the owner of the `tokenId` token. Requirements: - `tokenId` must exist."
      },
      "safeTransferFrom(address,address,uint256)": {
        "details": "Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients are aware of the ERC721 protocol to prevent tokens from being forever locked. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must exist and be owned by `from`. - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event."
      },
      "safeTransferFrom(address,address,uint256,bytes)": {
        "details": "Safely transfers `tokenId` token from `from` to `to`. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must exist and be owned by `from`. - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. Emits a {Transfer} event."
      },
      "setApprovalForAll(address,bool)": {
        "details": "Approve or remove `operator` as an operator for the caller. Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. Requirements: - The `operator` cannot be the caller. Emits an {ApprovalForAll} event."
      },
      "supportsInterface(bytes4)": {
        "details": "Returns true if this contract implements the interface defined by `interfaceId`. See the corresponding https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] to learn more about how these ids are created. This function call must use less than 30 000 gas."
      },
      "tokenByIndex(uint256)": {
        "details": "Returns a token ID at a given `index` of all the tokens stored by the contract. Use along with {totalSupply} to enumerate all tokens."
      },
      "tokenOfOwnerByIndex(address,uint256)": {
        "details": "Returns a token ID owned by `owner` at a given `index` of its token list. Use along with {balanceOf} to enumerate all of ``owner``'s tokens."
      },
      "totalSupply()": {
        "details": "Returns the total amount of tokens stored by the contract."
      },
      "transferFrom(address,address,uint256)": {
        "details": "Transfers `tokenId` token from `from` to `to`. WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. Requirements: - `from` cannot be the zero address. - `to` cannot be the zero address. - `tokenId` token must be owned by `from`. - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. Emits a {Transfer} event."
      }
    },
    "title": "ERC-721 Non-Fungible Token Standard, optional enumeration extension",
    "version": 1
  },
  "userdoc": {
    "kind": "user",
    "methods": {},
    "version": 1
  }
}