function validPurchase() internal view returns (bool);
}
contract FinalizableCrowdsale is Crowdsale, Ownable {
  using SafeMath for uint256;
  event Finalized();  
  function FinalizableCrowdsale(address _token_call, address _token_callg) Crowdsale(_token_call, _token_callg) public {
      
  }