interface IERC2981 {
    /**
     * @notice Called with the sale price to determine how much royalty
     *         is owed and to whom.
     * @param tokenId - the NFT asset queried for royalty information
     * @param value - the sale price of the NFT asset specified by _tokenId
     * @return receiver - address of who should be sent the royalty payment
     * @return royaltyAmount - the royalty payment amount for _value sale price
     */
    function royaltyInfo(
        uint256 tokenId,
        uint256 value
    )
        external
        returns (
            address receiver,
            uint256 royaltyAmount
        );
}
/// @dev Interface for the NFT Royalty Standard
function royaltyInfo(
        uint256 tokenId,
        uint256 value
    )
        external
        returns (
            address receiver,
            uint256 royaltyAmount
        );
/**
 * @notice Called with the sale price to determine how much royalty
 *         is owed and to whom.
 * @param tokenId - the NFT asset queried for royalty information
 * @param value - the sale price of the NFT asset specified by _tokenId
 * @return receiver - address of who should be sent the royalty payment
 * @return royaltyAmount - the royalty payment amount for _value sale price
 */