int|null getListenerPriority(string $eventName, callable $listener) Gets the listener priority

int|null getListenerPriority(string $eventName, callable $listener) Gets the listener priority

removeSubscriber(

wasCalled()

class GenericEvent extends Event

mixed getArgument(string $key) Get argument by key.

addSubscriber(

array getCalledListeners() Gets the called listeners.

bool hasListeners(string $eventName = null) Checks whether an event has any registered listeners

bool hasArgument(string $key) Has argument.