// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.8.18;

interface ISmartAssetUpdatable {
    function getLastImprintOf(uint256 tokenId) external view returns (bytes32);

    function getLastUpdateOf(uint256 tokenId) external view returns (TokenUpdate memory);

    function updateToken(uint256 tokenId, bytes32 newImprint) external;

    /**
     * @notice Update of a token.
     */
    struct TokenUpdate {
        bytes32 imprint;
        uint256 updateTimestamp;
    }
}