creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "contracts/Forwarder.sol": {
        "content": "// SPDX-License-Identifier: Apache-2.0\npragma solidity 0.8.10;\nimport '@openzeppelin/contracts/token/ERC1155/IERC1155.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721.sol';\nimport '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';\nimport '@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol';\nimport './ERC20Interface.sol';\nimport './TransferHelper.sol';\nimport './IForwarder.sol';\n\n/**\n * Contract that will forward any incoming Ether to the creator of the contract\n *\n */\ncontract Forwarder is IERC721Receiver, ERC1155Receiver, IForwarder {\n  // Address to which any funds sent to this contract will be forwarded\n  address public parentAddress;\n  bool public autoFlush721 = true;\n  bool public autoFlush1155 = true;\n\n  event ForwarderDeposited(address from, uint256 value, bytes data);\n\n  /**\n   * Initialize the contract, and sets the destination address to that of the creator\n   */\n  function init(\n    address _parentAddress,\n    bool _autoFlush721,\n    bool _autoFlush1155\n  ) external onlyUninitialized {\n    parentAddress = _parentAddress;\n    uint256 value = address(this).balance;\n\n    // set whether we want to automatically flush erc721/erc1155 tokens or not\n    autoFlush721 = _autoFlush721;\n    autoFlush1155 = _autoFlush1155;\n\n    if (value == 0) {\n      return;\n    }\n\n    (bool success, ) = parentAddress.call{ value: value }('');\n    require(success, 'Flush failed');\n\n    // NOTE: since we are forwarding on initialization,\n    // we don't have the context of the original sender.\n    // We still emit an event about the forwarding but set\n    // the sender to the forwarder itself\n    emit ForwarderDeposited(address(this), value, msg.data);\n  }\n\n  /**\n   * Modifier that will execute internal code block only if the sender is the parent address\n   */\n  modifier onlyParent {\n    require(msg.sender == parentAddress, 'Only Parent');\n    _;\n  }\n\n  /**\n   * Modifier that will execute internal code block only if the contract has not been initialized yet\n   */\n  modifier onlyUninitialized {\n    require(parentAddress == address(0x0), 'Already initialized');\n    _;\n  }\n\n  /**\n   * Default function; Gets called when data is sent but does not match any other function\n   */\n  fallback() external payable {\n    flush();\n  }\n\n  /**\n   * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address\n   */\n  receive() external payable {\n    flush();\n  }\n\n  /**\n   * @inheritdoc IForwarder\n   */\n  function setAutoFlush721(bool autoFlush)\n    external\n    virtual\n    override\n    onlyParent\n  {\n    autoFlush721 = autoFlush;\n  }\n\n  /**\n   * @inheritdoc IForwarder\n   */\n  function setAutoFlush1155(bool autoFlush)\n    external\n    virtual\n    override\n    onlyParent\n  {\n    autoFlush1155 = autoFlush;\n  }\n\n  /**\n   * ERC721 standard callback function for when a ERC721 is transfered. The forwarder will send the nft\n   * to the base wallet once the nft contract invokes this method after transfering the nft.\n   *\n   * @param _operator The address which called `safeTransferFrom` function\n   * @param _from The address of the sender\n   * @param _tokenId The token id of the nft\n   * @param data Additional data with no specified format, sent in call to `_to`\n   */\n  function onERC721Received(\n    address _operator,\n    address _from,\n    uint256 _tokenId,\n    bytes memory data\n  ) external virtual override returns (bytes4) {\n    if (autoFlush721) {\n      IERC721 instance = IERC721(msg.sender);\n      require(\n        instance.supportsInterface(type(IERC721).interfaceId),\n        'The caller does not support the ERC721 interface'\n      );\n      // this won't work for ERC721 re-entrancy\n      instance.safeTransferFrom(address(this), parentAddress, _tokenId, data);\n    }\n\n    return this.onERC721Received.selector;\n  }\n\n  function callFromParent(\n    address target,\n    uint256 value,\n    bytes calldata data\n  ) external onlyParent returns (bytes memory) {\n    (bool success, bytes memory returnedData) = target.call{ value: value }(\n      data\n    );\n    require(success, 'Parent call execution failed');\n\n    return returnedData;\n  }\n\n  /**\n   * @inheritdoc IERC1155Receiver\n   */\n  function onERC1155Received(\n    address _operator,\n    address _from,\n    uint256 id,\n    uint256 value,\n    bytes calldata data\n  ) external virtual override returns (bytes4) {\n    IERC1155 instance = IERC1155(msg.sender);\n    require(\n      instance.supportsInterface(type(IERC1155).interfaceId),\n      'The caller does not support the IERC1155 interface'\n    );\n\n    if (autoFlush1155) {\n      instance.safeTransferFrom(address(this), parentAddress, id, value, data);\n    }\n\n    return this.onERC1155Received.selector;\n  }\n\n  /**\n   * @inheritdoc IERC1155Receiver\n   */\n  function onERC1155BatchReceived(\n    address _operator,\n    address _from,\n    uint256[] calldata ids,\n    uint256[] calldata values,\n    bytes calldata data\n  ) external virtual override returns (bytes4) {\n    IERC1155 instance = IERC1155(msg.sender);\n    require(\n      instance.supportsInterface(type(IERC1155).interfaceId),\n      'The caller does not support the IERC1155 interface'\n    );\n\n    if (autoFlush1155) {\n      instance.safeBatchTransferFrom(\n        address(this),\n        parentAddress,\n        ids,\n        values,\n        data\n      );\n    }\n\n    return this.onERC1155BatchReceived.selector;\n  }\n\n  /**\n   * @inheritdoc IForwarder\n   */\n  function flushTokens(address tokenContractAddress)\n    external\n    virtual\n    override\n    onlyParent\n  {\n    ERC20Interface instance = ERC20Interface(tokenContractAddress);\n    address forwarderAddress = address(this);\n    uint256 forwarderBalance = instance.balanceOf(forwarderAddress);\n    if (forwarderBalance == 0) {\n      return;\n    }\n\n    TransferHelper.safeTransfer(\n      tokenContractAddress,\n      parentAddress,\n      forwarderBalance\n    );\n  }\n\n  /**\n   * @inheritdoc IForwarder\n   */\n  function flushERC721Token(address tokenContractAddress, uint256 tokenId)\n    external\n    virtual\n    override\n    onlyParent\n  {\n    IERC721 instance = IERC721(tokenContractAddress);\n    require(\n      instance.supportsInterface(type(IERC721).interfaceId),\n      'The tokenContractAddress does not support the ERC721 interface'\n    );\n\n    address ownerAddress = instance.ownerOf(tokenId);\n    instance.transferFrom(ownerAddress, parentAddress, tokenId);\n  }\n\n  /**\n   * @inheritdoc IForwarder\n   */\n  function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)\n    external\n    virtual\n    override\n    onlyParent\n  {\n    IERC1155 instance = IERC1155(tokenContractAddress);\n    require(\n      instance.supportsInterface(type(IERC1155).interfaceId),\n      'The caller does not support the IERC1155 interface'\n    );\n\n    address forwarderAddress = address(this);\n    uint256 forwarderBalance = instance.balanceOf(forwarderAddress, tokenId);\n\n    instance.safeTransferFrom(\n      forwarderAddress,\n      parentAddress,\n      tokenId,\n      forwarderBalance,\n      ''\n    );\n  }\n\n  /**\n   * @inheritdoc IForwarder\n   */\n  function batchFlushERC1155Tokens(\n    address tokenContractAddress,\n    uint256[] calldata tokenIds\n  ) external virtual override onlyParent {\n    IERC1155 instance = IERC1155(tokenContractAddress);\n    require(\n      instance.supportsInterface(type(IERC1155).interfaceId),\n      'The caller does not support the IERC1155 interface'\n    );\n\n    address forwarderAddress = address(this);\n    uint256[] memory amounts = new uint256[](tokenIds.length);\n    for (uint256 i = 0; i < tokenIds.length; i++) {\n      amounts[i] = instance.balanceOf(forwarderAddress, tokenIds[i]);\n    }\n\n    instance.safeBatchTransferFrom(\n      forwarderAddress,\n      parentAddress,\n      tokenIds,\n      amounts,\n      ''\n    );\n  }\n\n  /**\n   * Flush the entire balance of the contract to the parent address.\n   */\n  function flush() public {\n    uint256 value = address(this).balance;\n\n    if (value == 0) {\n      return;\n    }\n\n    (bool success, ) = parentAddress.call{ value: value }('');\n    require(success, 'Flush failed');\n    emit ForwarderDeposited(msg.sender, value, msg.data);\n  }\n\n  /**\n   * @inheritdoc IERC165\n   */\n  function supportsInterface(bytes4 interfaceId)\n    public\n    virtual\n    override(ERC1155Receiver, IERC165)\n    view\n    returns (bool)\n  {\n    return\n      interfaceId == type(IForwarder).interfaceId ||\n      super.supportsInterface(interfaceId);\n  }\n}\n"
      },
      "@openzeppelin/contracts/token/ERC1155/IERC1155.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC1155 compliant contract, as defined in the\n * https://eips.ethereum.org/EIPS/eip-1155[EIP].\n *\n * _Available since v3.1._\n */\ninterface IERC1155 is IERC165 {\n    /**\n     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.\n     */\n    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);\n\n    /**\n     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all\n     * transfers.\n     */\n    event TransferBatch(\n        address indexed operator,\n        address indexed from,\n        address indexed to,\n        uint256[] ids,\n        uint256[] values\n    );\n\n    /**\n     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to\n     * `approved`.\n     */\n    event ApprovalForAll(address indexed account, address indexed operator, bool approved);\n\n    /**\n     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.\n     *\n     * If an {URI} event was emitted for `id`, the standard\n     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value\n     * returned by {IERC1155MetadataURI-uri}.\n     */\n    event URI(string value, uint256 indexed id);\n\n    /**\n     * @dev Returns the amount of tokens of token type `id` owned by `account`.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     */\n    function balanceOf(address account, uint256 id) external view returns (uint256);\n\n    /**\n     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.\n     *\n     * Requirements:\n     *\n     * - `accounts` and `ids` must have the same length.\n     */\n    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)\n        external\n        view\n        returns (uint256[] memory);\n\n    /**\n     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,\n     *\n     * Emits an {ApprovalForAll} event.\n     *\n     * Requirements:\n     *\n     * - `operator` cannot be the caller.\n     */\n    function setApprovalForAll(address operator, bool approved) external;\n\n    /**\n     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.\n     *\n     * See {setApprovalForAll}.\n     */\n    function isApprovedForAll(address account, address operator) external view returns (bool);\n\n    /**\n     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.\n     *\n     * Emits a {TransferSingle} event.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.\n     * - `from` must have a balance of tokens of type `id` of at least `amount`.\n     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the\n     * acceptance magic value.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 id,\n        uint256 amount,\n        bytes calldata data\n    ) external;\n\n    /**\n     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.\n     *\n     * Emits a {TransferBatch} event.\n     *\n     * Requirements:\n     *\n     * - `ids` and `amounts` must have the same length.\n     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the\n     * acceptance magic value.\n     */\n    function safeBatchTransferFrom(\n        address from,\n        address to,\n        uint256[] calldata ids,\n        uint256[] calldata amounts,\n        bytes calldata data\n    ) external;\n}\n"
      },
      "@openzeppelin/contracts/token/ERC721/IERC721.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n    /**\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n     */\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n     */\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /**\n     * @dev Returns the number of tokens in ``owner``'s account.\n     */\n    function balanceOf(address owner) external view returns (uint256 balance);\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) external view returns (address owner);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Transfers `tokenId` token from `from` to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) external;\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) external view returns (address operator);\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool _approved) external;\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}\n     */\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes calldata data\n    ) external;\n}\n"
      },
      "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n    /**\n     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n     * by `operator` from `from`, this function is called.\n     *\n     * It must return its Solidity selector to confirm the token transfer.\n     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n     *\n     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.\n     */\n    function onERC721Received(\n        address operator,\n        address from,\n        uint256 tokenId,\n        bytes calldata data\n    ) external returns (bytes4);\n}\n"
      },
      "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC1155Receiver.sol\";\nimport \"../../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\nabstract contract ERC1155Receiver is ERC165, IERC1155Receiver {\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n        return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);\n    }\n}\n"
      },
      "contracts/ERC20Interface.sol": {
        "content": "// SPDX-License-Identifier: UNLICENSED\npragma solidity 0.8.10;\n\n/**\n * Contract that exposes the needed erc20 token functions\n */\n\nabstract contract ERC20Interface {\n  // Send _value amount of tokens to address _to\n  function transfer(address _to, uint256 _value)\n    public\n    virtual\n    returns (bool success);\n\n  // Get the account balance of another account with address _owner\n  function balanceOf(address _owner)\n    public\n    virtual\n    view\n    returns (uint256 balance);\n}\n"
      },
      "contracts/TransferHelper.sol": {
        "content": "// SPDX-License-Identifier: GPL-3.0-or-later\n// source: https://github.com/Uniswap/solidity-lib/blob/master/contracts/libraries/TransferHelper.sol\npragma solidity 0.8.10;\n\nimport '@openzeppelin/contracts/utils/Address.sol';\n\n// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false\nlibrary TransferHelper {\n  function safeTransfer(\n    address token,\n    address to,\n    uint256 value\n  ) internal {\n    // bytes4(keccak256(bytes('transfer(address,uint256)')));\n    (bool success, bytes memory data) = token.call(\n      abi.encodeWithSelector(0xa9059cbb, to, value)\n    );\n    require(\n      success && (data.length == 0 || abi.decode(data, (bool))),\n      'TransferHelper::safeTransfer: transfer failed'\n    );\n  }\n\n  function safeTransferFrom(\n    address token,\n    address from,\n    address to,\n    uint256 value\n  ) internal {\n    // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));\n    (bool success, bytes memory returndata) = token.call(\n      abi.encodeWithSelector(0x23b872dd, from, to, value)\n    );\n    Address.verifyCallResult(\n      success,\n      returndata,\n      'TransferHelper::transferFrom: transferFrom failed'\n    );\n  }\n}\n"
      },
      "contracts/IForwarder.sol": {
        "content": "pragma solidity ^0.8.0;\n\nimport '@openzeppelin/contracts/utils/introspection/IERC165.sol';\n\ninterface IForwarder is IERC165 {\n  /**\n   * Sets the autoflush721 parameter.\n   *\n   * @param autoFlush whether to autoflush erc721 tokens\n   */\n  function setAutoFlush721(bool autoFlush) external;\n\n  /**\n   * Sets the autoflush1155 parameter.\n   *\n   * @param autoFlush whether to autoflush erc1155 tokens\n   */\n  function setAutoFlush1155(bool autoFlush) external;\n\n  /**\n   * Execute a token transfer of the full balance from the forwarder token to the parent address\n   *\n   * @param tokenContractAddress the address of the erc20 token contract\n   */\n  function flushTokens(address tokenContractAddress) external;\n\n  /**\n   * Execute a nft transfer from the forwarder to the parent address\n   *\n   * @param tokenContractAddress the address of the ERC721 NFT contract\n   * @param tokenId The token id of the nft\n   */\n  function flushERC721Token(address tokenContractAddress, uint256 tokenId)\n    external;\n\n  /**\n   * Execute a nft transfer from the forwarder to the parent address.\n   *\n   * @param tokenContractAddress the address of the ERC1155 NFT contract\n   * @param tokenId The token id of the nft\n   */\n  function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)\n    external;\n\n  /**\n   * Execute a batch nft transfer from the forwarder to the parent address.\n   *\n   * @param tokenContractAddress the address of the ERC1155 NFT contract\n   * @param tokenIds The token ids of the nfts\n   */\n  function batchFlushERC1155Tokens(\n    address tokenContractAddress,\n    uint256[] calldata tokenIds\n  ) external;\n}\n"
      },
      "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30 000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
      },
      "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155Receiver.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev _Available since v3.1._\n */\ninterface IERC1155Receiver is IERC165 {\n    /**\n        @dev Handles the receipt of a single ERC1155 token type. This function is\n        called at the end of a `safeTransferFrom` after the balance has been updated.\n        To accept the transfer, this must return\n        `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))`\n        (i.e. 0xf23a6e61, or its own function selector).\n        @param operator The address which initiated the transfer (i.e. msg.sender)\n        @param from The address which previously owned the token\n        @param id The ID of the token being transferred\n        @param value The amount of tokens being transferred\n        @param data Additional data with no specified format\n        @return `bytes4(keccak256(\"onERC1155Received(address,address,uint256,uint256,bytes)\"))` if transfer is allowed\n    */\n    function onERC1155Received(\n        address operator,\n        address from,\n        uint256 id,\n        uint256 value,\n        bytes calldata data\n    ) external returns (bytes4);\n\n    /**\n        @dev Handles the receipt of a multiple ERC1155 token types. This function\n        is called at the end of a `safeBatchTransferFrom` after the balances have\n        been updated. To accept the transfer(s), this must return\n        `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))`\n        (i.e. 0xbc197c81, or its own function selector).\n        @param operator The address which initiated the batch transfer (i.e. msg.sender)\n        @param from The address which previously owned the token\n        @param ids An array containing ids of each token being transferred (order and length must match values array)\n        @param values An array containing amounts of each token being transferred (order and length must match ids array)\n        @param data Additional data with no specified format\n        @return `bytes4(keccak256(\"onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)\"))` if transfer is allowed\n    */\n    function onERC1155BatchReceived(\n        address operator,\n        address from,\n        uint256[] calldata ids,\n        uint256[] calldata values,\n        bytes calldata data\n    ) external returns (bytes4);\n}\n"
      },
      "@openzeppelin/contracts/utils/introspection/ERC165.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IERC165).interfaceId;\n    }\n}\n"
      },
      "@openzeppelin/contracts/utils/Address.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\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     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\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     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize, which returns 0 for contracts in\n        // construction, since the code is only stored at the end of the\n        // constructor execution.\n\n        uint256 size;\n        assembly {\n            size := extcodesize(account)\n        }\n        return size > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\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     *\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\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].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @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     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\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     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCall(target, data, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        require(isContract(target), \"Address: call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        require(isContract(target), \"Address: static call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(isContract(target), \"Address: delegate call to non-contract\");\n\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResult(success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            // Look for revert reason and bubble it up if present\n            if (returndata.length > 0) {\n                // The easiest way to bubble the revert reason is using memory via assembly\n\n                assembly {\n                    let returndata_size := mload(returndata)\n                    revert(add(32, returndata), returndata_size)\n                }\n            } else {\n                revert(errorMessage);\n            }\n        }\n    }\n}\n"
      }
    },
    "settings": {
      "optimizer": {
        "enabled": false,
        "runs": 200
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
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            "metadata",
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          ]
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      "libraries": {}
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  }}