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contract KZLUnlock { // Mapping of users to their digital assets mapping (address => mapping (uint256 => bool)) public userAssets;
pragma solidity ^0.8.0;
// Emit the AssetUnlocked event emit AssetUnlocked(msg.sender, _assetId); } }
// Event emitted when a user unlocks a digital asset event AssetUnlocked(address indexed user, uint256 indexed assetId);
