spiechu / lazy-pimple

    {

        $eventDispatcher = $container[$this->eventDispatcherServiceName];

        if (!$eventDispatcher instanceof EventDispatcherInterface) {

            throw new \InvalidArgumentException(sprintf(

                'Container service "%s" is "%s" and not exptected instance of "EventDispatcherInterface"',

                $this->eventDispatcherServiceName,

                \is_object($eventDispatcher) ? \get_class($eventDispatcher) : \gettype($eventDispatcher)

            ));

        }

        return $eventDispatcher;

    }

                $initializer = null;

                // extra defensive programming in action

                if (!$wrappedObject instanceof $className) {

                    throw new \InvalidArgumentException(sprintf(

                        'Object "%s" is not instance of "%s"',

                        \is_object($wrappedObject) ? \get_class($wrappedObject) : \gettype($wrappedObject),

                        $className

                    ));

                }

                return true;

            }