{
    "Function": "unstake",
    "File": "contracts/legacy/MetaVault.sol",
    "Parent Contracts": [
        "contracts/legacy/IMetaVault.sol",
        "node_modules/@openzeppelin/contracts/token/ERC20/ERC20.sol",
        "node_modules/@openzeppelin/contracts/token/ERC20/IERC20.sol",
        "node_modules/@openzeppelin/contracts/utils/Context.sol"
    ],
    "High-Level Calls": [
        "SafeMath",
        "SafeMath",
        "SafeMath",
        "IERC20"
    ],
    "Internal Calls": [
        "require(bool,string)",
        "_getReward",
        "updateReward"
    ],
    "Library Calls": [
        "div",
        "sub",
        "mul"
    ],
    "Low-Level Calls": [],
    "Code": "function unstake(uint _amount) public {\n        updateReward();\n        _getReward();\n        UserInfo storage user = userInfo[msg.sender];\n        if (_amount > 0) {\n            require(user.amount >= _amount, \"stakedBal < _amount\");\n            user.amount = user.amount.sub(_amount);\n            IERC20(address(this)).transfer(msg.sender, _amount);\n        }\n        user.yaxRewardDebt = user.amount.mul(accYaxPerShare).div(1e12);\n        emit Withdraw(msg.sender, _amount);\n    }"
}