protected function handleStage(&$stages, $stage)
	{
		if (is_string($stage)) {
			$stages[] = $stage;
		}
		else {
			$this->traitHandleStage($stages, $stage);
		}
	}
protected function handleStage(&$stages, $stage)
	{
		if (is_string($stage)) {
			$stages[] = $stage;
		}
		else {
			$this->traitHandleStage($stages, $stage);
		}
	}
{@inheritdoc}