code: public function validateArgSet($set)
  	{
  		if (isset($set)) {
  			foreach ($set as $arg) {
  				if (!isset($this->{$arg})) {
  					throw new \Exception('Response not valid: ' . $arg . ' has not been set!');
  				}
  			}
  		}
  		
  	}
docs: Validate a set of arguments
  
  @return void