// SPDX-License-Identifier: MIT

pragma solidity >=0.7.6 <0.8.0;

// /**
//  * @dev Interface for retrieving core metadata attributes encoded in an integer
//  * and based on a specific bits layout. A layout consists of a mapping of names
//  * to bits position inside a uint256. The position is characterised by a length
//  * and an index and must remain in the bounds of 256 bits. Positions of a layout
//  * may overlap.
//  * Note that these functions are expected to work for any integer provided and
//  * should not be expected to have knowledge of the existence of a token in a
//  * specific contract.
//  */
// interface ICoreMetadata {
//     /**
//      * @dev Retrieve the value of a specific attribute for an integer
//      * @param integer uint256 the integer to inspect
//      * @param name bytes32 the attribute name to retrieve
//      * @return value uint256 the value of the attribute
//      */
//     function getAttribute(uint256 integer, bytes32 name) external view returns (uint256 value);

//     /**
//      * @dev Retrieve the value of a specific attribute for an integer
//      * @param integer uint256 the integer to inspect
//      * @param names bytes32[] the list of attribute names to retrieve
//      * @return values uint256[] the values of the attributes
//      */
//     function getAttributes(uint256 integer, bytes32[] calldata names) external view returns (uint256[] memory values);

//     /**
//      * @dev Retrieve the whole core metadata for an integer
//      * @param integer uint256 the integer to inspect
//      * @return names bytes32[] the names of the metadata attributes
//      * @return values uint256[] the values of the metadata attributes
//      */
//     function getAllAttributes(uint256 integer) external view returns (bytes32[] memory names, uint256[] memory values);
// }