// SPDX-License-Identifier: MIT pragma solidity ^0.8.15; library ERC1155SupplyStorage { struct Layout { mapping(uint256 => uint256) totalSupply; mapping(uint256 => uint256) maxSupply; } bytes32 internal constant STORAGE_SLOT = keccak256("v2.flair.contracts.storage.ERC1155Supply"); function layout() internal pure returns (Layout storage l) { bytes32 slot = STORAGE_SLOT; assembly { l.slot := slot } } }