src/EngineContainerTrait.php
public function getEngines($reset = false)
    {
        if ($reset || null === $this->engines) {
            $this->engines = new \SplObjectStorage();
        }

        return $this->engines;
    }
public function getEngines($reset = false)
    {
        if ($reset || null === $this->engines) {
            $this->engines = new \SplObjectStorage();
        }

        return $this->engines;
    }
@param bool $reset

@return \SplObjectStorage|Engine\EngineInterface[]