function VeiagTokenVesting(
        ERC20Basic _token,
        address _beneficiary,
        uint256 _start,
        uint256 _cliff,
        uint256 _duration,
        bool _revocable
    ) TokenVesting(_beneficiary, _start, _cliff, _duration, _revocable) public
    {
        require(_token != address(0));

        token = _token;
    }