emit2<T, S> method
Emits a signal to all subscribed functions for a topic
in the event
system. This method calls all functions subscribed to the topic with two
arguments. Any errors thrown by the functions are silently ignored.
Implementation
void emit2<T, S>(String topic, T arg1, S arg2) {
void _send(Function? fn) => fn!.call(arg1, arg2);
_cache[topic]?.forEach(_send);
_cacheOnce[topic]?.forEach(_send);
_cacheOnce.remove(topic);
}