{ "abi": [], "bytecode": { "object": "0x602d6023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea164736f6c6343000706000a", "sourceMap": "134:7684:29:-:0;;;;;;;;;;;;;;;;;;;;;;;;;", "linkReferences": {} }, "deployedBytecode": { "object": "0x73000000000000000000000000000000000000000030146080604052600080fdfea164736f6c6343000706000a", "sourceMap": "134:7684:29:-:0;;;;;;;;", "linkReferences": {} }, "methodIdentifiers": {}, "ast": { "absolutePath": "node_modules/@openzeppelin/contracts/utils/Address.sol", "id": 28027, "exportedSymbols": { "Address": [ 28026 ] }, "nodeType": "SourceUnit", "src": "33:7786:29", "nodes": [ { "id": 27732, "nodeType": "PragmaDirective", "src": "33:31:29", "literals": [ "solidity", ">=", "0.6", ".2", "<", "0.8", ".0" ] }, { "id": 28026, "nodeType": "ContractDefinition", "src": "134:7684:29", "nodes": [ { "id": 27750, "nodeType": "FunctionDefinition", "src": "726:413:29", "body": { "id": 27749, "nodeType": "Block", "src": "792:347:29", "statements": [ { "assignments": [ 27742 ], "declarations": [ { "constant": false, "id": 27742, "mutability": "mutable", "name": "size", "nodeType": "VariableDeclaration", "scope": 27749, "src": "989:12:29", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 27741, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "989:7:29", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "id": 27743, "nodeType": "VariableDeclarationStatement", "src": "989:12:29" }, { "AST": { "nodeType": "YulBlock", "src": "1076:32:29", "statements": [ { "nodeType": "YulAssignment", "src": "1078:28:29", "value": { "arguments": [ { "name": "account", "nodeType": "YulIdentifier", "src": "1098:7:29" } ], "functionName": { "name": "extcodesize", "nodeType": "YulIdentifier", "src": "1086:11:29" }, "nodeType": "YulFunctionCall", "src": "1086:20:29" }, "variableNames": [ { "name": "size", "nodeType": "YulIdentifier", "src": "1078:4:29" } ] } ] }, "evmVersion": "istanbul", "externalReferences": [ { "declaration": 27736, "isOffset": false, "isSlot": false, "src": "1098:7:29", "valueSize": 1 }, { "declaration": 27742, "isOffset": false, "isSlot": false, "src": "1078:4:29", "valueSize": 1 } ], "id": 27744, "nodeType": "InlineAssembly", "src": "1067:41:29" }, { "expression": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 27747, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 27745, "name": "size", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27742, "src": "1124:4:29", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "hexValue": "30", "id": 27746, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1131:1:29", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1124:8:29", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "functionReturnParameters": 27740, "id": 27748, "nodeType": "Return", "src": "1117:15:29" } ] }, "documentation": { "id": 27734, "nodeType": "StructuredDocumentation", "src": "156:565:29", "text": " @dev Returns true if `account` is a contract.\n [IMPORTANT]\n ====\n It is unsafe to assume that an address for which this function returns\n false is an externally-owned account (EOA) and not a contract.\n Among others, `isContract` will return false for the following\n types of addresses:\n - an externally-owned account\n - a contract in construction\n - an address where a contract will be created\n - an address where a contract lived, but was destroyed\n ====" }, "implemented": true, "kind": "function", "modifiers": [], "name": "isContract", "parameters": { "id": 27737, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 27736, "mutability": "mutable", "name": "account", "nodeType": "VariableDeclaration", "scope": 27750, "src": "746:15:29", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 27735, "name": "address", "nodeType": "ElementaryTypeName", "src": "746:7:29", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" } ], "src": "745:17:29" }, "returnParameters": { "id": 27740, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 27739, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 27750, "src": "786:4:29", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 27738, "name": "bool", "nodeType": "ElementaryTypeName", "src": "786:4:29", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" } ], "src": "785:6:29" }, "scope": 28026, "stateMutability": "view", "virtual": false, "visibility": "internal" }, { "id": 27784, "nodeType": "FunctionDefinition", "src": "2056:391:29", "body": { "id": 27783, "nodeType": "Block", "src": "2127:320:29", "statements": [ { "expression": { "arguments": [ { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 27765, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "expression": { "arguments": [ { "id": 27761, "name": "this", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -28, "src": "2153:4:29", "typeDescriptions": { "typeIdentifier": "t_contract$_Address_$28026", "typeString": "library Address" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_Address_$28026", "typeString": "library Address" } ], "id": 27760, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2145:7:29", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": { "id": 27759, "name": "address", "nodeType": "ElementaryTypeName", "src": "2145:7:29", "typeDescriptions": {} } }, "id": 27762, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2145:13:29", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 27763, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "balance", "nodeType": "MemberAccess", "src": "2145:21:29", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">=", "rightExpression": { "id": 27764, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27755, "src": "2170:6:29", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "2145:31:29", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "hexValue": "416464726573733a20696e73756666696369656e742062616c616e6365", "id": 27766, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2178:31:29", "typeDescriptions": { "typeIdentifier": "t_stringliteral_5597a22abd0ef5332f8053862eb236db7590f17e2b93a53f63a103becfb561f9", "typeString": "literal_string \"Address: insufficient balance\"" }, "value": "Address: insufficient balance" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_5597a22abd0ef5332f8053862eb236db7590f17e2b93a53f63a103becfb561f9", "typeString": "literal_string \"Address: insufficient balance\"" } ], "id": 27758, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "2137:7:29", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 27767, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2137:73:29", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 27768, "nodeType": "ExpressionStatement", "src": "2137:73:29" }, { "assignments": [ 27770, null ], "declarations": [ { "constant": false, "id": 27770, "mutability": "mutable", "name": "success", "nodeType": "VariableDeclaration", "scope": 27783, "src": "2299:12:29", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 27769, "name": "bool", "nodeType": "ElementaryTypeName", "src": "2299:4:29", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" }, null ], "id": 27777, "initialValue": { "arguments": [ { "hexValue": "", "id": 27775, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2349:2:29", "typeDescriptions": { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" }, "value": "" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", "typeString": "literal_string \"\"" } ], "expression": { "id": 27771, "name": "recipient", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27753, "src": "2317:9:29", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "id": 27772, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "call", "nodeType": "MemberAccess", "src": "2317:14:29", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 27774, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "names": [ "value" ], "nodeType": "FunctionCallOptions", "options": [ { "id": 27773, "name": "amount", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27755, "src": "2340:6:29", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "src": "2317:31:29", "typeDescriptions": { "typeIdentifier": "t_function_barecall_payable$_t_bytes_memory_ptr_$returns$_t_bool_$_t_bytes_memory_ptr_$value", "typeString": "function (bytes memory) payable returns (bool,bytes memory)" } }, "id": 27776, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2317:35:29", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$_t_bool_$_t_bytes_memory_ptr_$", "typeString": "tuple(bool,bytes memory)" } }, "nodeType": "VariableDeclarationStatement", "src": "2298:54:29" }, { "expression": { "arguments": [ { "id": 27779, "name": "success", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27770, "src": "2370:7:29", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "hexValue": "416464726573733a20756e61626c6520746f2073656e642076616c75652c20726563697069656e74206d61792068617665207265766572746564", "id": 27780, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "2379:60:29", "typeDescriptions": { "typeIdentifier": "t_stringliteral_51ddaa38748c0a1144620fb5bfe8edab31ea437571ad591a7734bbfd0429aeae", "typeString": "literal_string \"Address: unable to send value, recipient may have reverted\"" }, "value": "Address: unable to send value, recipient may have reverted" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_51ddaa38748c0a1144620fb5bfe8edab31ea437571ad591a7734bbfd0429aeae", "typeString": "literal_string \"Address: unable to send value, recipient may have reverted\"" } ], "id": 27778, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ -18, -18 ], "referencedDeclaration": -18, "src": "2362:7:29", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 27781, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2362:78:29", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 27782, "nodeType": "ExpressionStatement", "src": "2362:78:29" } ] }, "documentation": { "id": 27751, "nodeType": "StructuredDocumentation", "src": "1145:906:29", "text": " @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n `recipient`, forwarding all available gas and reverting on errors.\n https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n of certain opcodes, possibly making contracts go over the 2300 gas limit\n imposed by `transfer`, making them unable to receive funds via\n `transfer`. {sendValue} removes this limitation.\n https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n IMPORTANT: because control is transferred to `recipient`, care must be\n taken to not create reentrancy vulnerabilities. Consider using\n {ReentrancyGuard} or the\n https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]." }, "implemented": true, "kind": "function", "modifiers": [], "name": "sendValue", "parameters": { "id": 27756, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 27753, "mutability": "mutable", "name": "recipient", "nodeType": "VariableDeclaration", "scope": 27784, "src": "2075:25:29", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" }, "typeName": { "id": 27752, "name": "address", "nodeType": "ElementaryTypeName", "src": "2075:15:29", "stateMutability": "payable", "typeDescriptions": { "typeIdentifier": "t_address_payable", "typeString": "address payable" } }, "visibility": "internal" }, { "constant": false, "id": 27755, "mutability": "mutable", "name": "amount", "nodeType": "VariableDeclaration", "scope": 27784, "src": "2102:14:29", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 27754, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2102:7:29", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "visibility": "internal" } ], "src": "2074:43:29" }, "returnParameters": { "id": 27757, "nodeType": "ParameterList", "parameters": [], "src": "2127:0:29" }, "scope": 28026, "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "id": 27801, "nodeType": "FunctionDefinition", "src": "3188:171:29", "body": { "id": 27800, "nodeType": "Block", "src": "3277:82:29", "statements": [ { "expression": { "arguments": [ { "id": 27795, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27787, "src": "3305:6:29", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 27796, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27789, "src": "3313:4:29", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "hexValue": "416464726573733a206c6f772d6c6576656c2063616c6c206661696c6564", "id": 27797, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "3319:32:29", "typeDescriptions": { "typeIdentifier": "t_stringliteral_24d7ab5d382116e64324f19950ca9340b8af1ddeb09a8d026e0a3c6a01dcc9df", "typeString": "literal_string \"Address: low-level call failed\"" }, "value": "Address: low-level call failed" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_stringliteral_24d7ab5d382116e64324f19950ca9340b8af1ddeb09a8d026e0a3c6a01dcc9df", "typeString": "literal_string \"Address: low-level call failed\"" } ], "id": 27794, "name": "functionCall", "nodeType": "Identifier", "overloadedDeclarations": [ 27801, 27821 ], "referencedDeclaration": 27821, "src": "3292:12:29", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_bytes_memory_ptr_$_t_string_memory_ptr_$returns$_t_bytes_memory_ptr_$", "typeString": "function (address,bytes memory,string memory) returns (bytes memory)" } }, "id": 27798, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3292:60:29", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 27793, "id": 27799, "nodeType": "Return", "src": "3285:67:29" } ] }, "documentation": { "id": 27785, "nodeType": "StructuredDocumentation", "src": "2453:730:29", "text": " @dev Performs a Solidity function call using a low level `call`. A\n plain`call` is an unsafe replacement for a function call: use this\n function instead.\n If `target` reverts with a revert reason, it is bubbled up by this\n function (like regular Solidity function calls).\n Returns the raw returned data. To convert to the expected return value,\n use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n Requirements:\n - `target` must be a contract.\n - calling `target` with `data` must not revert.\n _Available since v3.1._" }, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "parameters": { "id": 27790, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 27787, "mutability": "mutable", "name": "target", "nodeType": "VariableDeclaration", "scope": 27801, "src": "3210:14:29", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 27786, "name": "address", "nodeType": "ElementaryTypeName", "src": "3210:7:29", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "internal" }, { "constant": false, "id": 27789, "mutability": "mutable", "name": "data", "nodeType": "VariableDeclaration", "scope": 27801, "src": "3226:17:29", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 27788, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3226:5:29", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "3209:35:29" }, "returnParameters": { "id": 27793, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 27792, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "scope": 27801, "src": "3263:12:29", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 27791, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "3263:5:29", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "visibility": "internal" } ], "src": "3262:14:29" }, "scope": 28026, "stateMutability": "nonpayable", "virtual": false, "visibility": "internal" }, { "id": 27821, "nodeType": "FunctionDefinition", "src": "3581:193:29", "body": { "id": 27820, "nodeType": "Block", "src": "3698:76:29", "statements": [ { "expression": { "arguments": [ { "id": 27814, "name": "target", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27804, "src": "3737:6:29", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "id": 27815, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27806, "src": "3745:4:29", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "hexValue": "30", "id": 27816, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "3751:1:29", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, { "id": 27817, "name": "errorMessage", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 27808, "src": "3754:12:29", "typeDescriptions": { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, { "typeIdentifier": "t_string_memory_ptr", "typeString": "string memory" } ], "id": 27813, "name": "functionCallWithValue", "nodeType": "Identifier", "overloadedDeclarations": [ 27841, 27891 ], "referencedDeclaration": 27891, "src": "3715:21:29", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_address_$_t_bytes_memory_ptr_$_t_uint256_$_t_string_memory_ptr_$returns$_t_bytes_memory_ptr_$", "typeString": "function (address,bytes memory,uint256,string memory) returns (bytes memory)" } }, "id": 27818, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "3715:52:29", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 27812, "id": 27819, "nodeType": "Return", "src": "3708:59:29" } ] }, "documentation": { "id": 27802, "nodeType": "StructuredDocumentation", "src": "3365:211:29", "text": " @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n `errorMessage` as a fallback revert reason when `target` reverts.\n _Available since v3.1._" }, "implemented": true, "kind": "function", "modifiers": [], "name": "functionCall", "parameters": 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