This function is only used internally for proxies
Subscribe to the event / hook
A token that can be used to unsubscribe from the event / hook later on
A callback that will be invoked when the event / hook occurs
This function is only used internally for proxies
Remove a listener
The token that was specified when subscribing to the listener. An invalid token does not result in an error.
This class will run the taps one after each other and pass the data from every subscriber to another.