pragma solidity ^0.5.0; /** * @dev Interface for an ERC1820 implementer, as defined in the * [EIP](https://eips.ethereum.org/EIPS/eip-1820#interface-implementation-erc1820implementerinterface). * Used by contracts that will be registered as implementers in the * `IERC1820Registry`. */ interface IERC1820Implementer { /** * @dev Returns a special value (`ERC1820_ACCEPT_MAGIC`) if this contract * implements `interfaceHash` for `account`. * * See `IERC1820Registry.setInterfaceImplementer`. */ function canImplementInterfaceForAddress(bytes32 interfaceHash, address account) external view returns (bytes32); }