interface IERC173 /* is ERC165 */ {
    /// @dev This emits when ownership of a contract changes.
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /// @notice Get the address of the owner
    /// @return The address of the owner.
    function owner() external view returns (address);

    /// @notice Set the address of the new owner of the contract
    /// @param _newOwner The address of the new owner of the contract
    function transferOwnership(address _newOwner) external;
}
function owner() external view returns (address);
/// @notice Get the address of the owner
/// @return The address of the owner.