// SPDX-License-Identifier: MIT pragma solidity ^0.8.15; library ERC2771ContextStorage { struct Layout { address trustedForwarder; } bytes32 internal constant STORAGE_SLOT = keccak256("openzeppelin.contracts.storage.ERC2771Context"); function layout() internal pure returns (Layout storage l) { bytes32 slot = STORAGE_SLOT; assembly { l.slot := slot } } }