code: protected function validator($varInput)
  	{
  		foreach ($varInput as $k=>$v)
  		{
  			if ($k != 'unit')
  			{
  				$varInput[$k] = parent::validator($v);
  			}
  		}
  
  		return $varInput;
  	}
docs: Do not validate unit fields
  
  @param mixed $varInput
  
  @return mixed