test.sol

pragma solidity ^0.6.8;



contract Finance {
    
    address owner;
    
    constructor() public {
        owner = msg.sender;    
    }   
    
    modifier onlyOwner() {
        require(msg.sender == owner);
        _;
    }
    
    receive() {
        
    }
    
    function transfer(address payable _to, address _token, uint256 _amount) onlyOwner  external {
        if (_token == address(0)) {
            require(_to.send(_amount), ERROR_ETH_TRANSFER_FAILED);
        } else {
            require(IERC20(_token).safeTransfer(_to, _amount), ERROR_TOKEN_TRANSFER_FAILED);
        }
    }
    
    
    function deposit(address _token, uint256 amount) onlyOwner payable external {
        if (msg.value > 0) {
            require(_token == address(0), ERROR_ETH_DEPOSIT_TOKEN_MISMATCH);
            require(msg.value == _amount, ERROR_ETH_DEPOSIT_AMOUNT_MISMATCH);
        } else {
            require(isContract(_token), ERROR_TOKEN_NOT_CONTRACT);
            require(IERC20(_token).safeTransferFrom(_from, address(this), _amount), ERROR_TOKEN_DEPOSIT_FAILED);
        }
    }
    
    
    
}