Solidity units smart contract file

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

contract MyUnits {

    // 1 wei == 1;

    // 1 gwei == 1e9;

    // 1 ether == 1e18;

    uint256 costOfNFT = 0.05 ether;

    // 1 == 1 seconds

    // 1 minutes == 60 seconds

    // 1 hours == 60 minutes

    // 1 days == 24 hours

    // 1 weeks == 7 days

    uint256 levelUpRate = 1 hours;

}

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