src/EventCacheTrait.php
protected function _createCachedEvent($event, array $args = [])
    {
        $event = $this->_normalizeEvent($event, $args);
        $name  = $event->getName();

        return $this->eventCache[$name] = $event;
    }
protected function _createCachedEvent($event, array $args = [])
    {
        $event = $this->_normalizeEvent($event, $args);
        $name  = $event->getName();

        return $this->eventCache[$name] = $event;
    }
Creates an event instance in cache.

@since [*next-version*]

@param string|Stringable|EventInterface $event The name of the event, or the event instance.
@param array                            $args  Optional array of event arguments.

@return EventInterface The created event instance.