openzeppelin-contracts/contracts/drafts/IERC1820Implementer.sol

pragma solidity ^0.5.2;

/**
 * @title IERC1820Implementer
 * Interface for contracts that will be registered as implementers in the ERC1820 registry.
 * @notice For more details, see https://eips.ethereum.org/EIPS/eip-1820
 */
interface IERC1820Implementer {
    /**
     * @notice Indicates whether the contract implements the interface `interfaceHash` for the address `account` or
     * not.
     * @param interfaceHash keccak256 hash of the name of the interface
     * @param account Address for which the contract will implement the interface
     * @return ERC1820_ACCEPT_MAGIC only if the contract implements `interfaceHash` for the address `account`.
     */
    function canImplementInterfaceForAddress(bytes32 interfaceHash, address account) external view returns (bytes32);
}