register War Callback
Registers a callback for war-related events.
Parameters
event
The monitored event for which the callback is registered.
callback
The callback function to be invoked when the event occurs.
Registers a callback for war-related events with an iterable callback function.
Parameters
event
The monitored event for which the callback is registered.
callback
The callback function to be invoked when the event occurs, taking one ClanWar objects and an additional ClanWarAttack as parameters.