GroupAction::getRequest

public function getRequest(string $code): ?array
{
	$code = trim($code);
	if ($code === '' || !isset($this->actionHandlers[$code]))
	{
		return null;
	}

	$method = 'action'.$this->actionHandlers[$code].'Request';
	if (is_callable([$this, $method]))
	{
		return call_user_func_array([$this, $method], []);
	}

	return [];
}