register method

  1. @override
void register(
  1. CallbackWithReturn<CallbackInputType, CallbackReturnType> callback
)
override

Register a callback

Implementation

@override
void register(
    CallbackWithReturn<CallbackInputType, CallbackReturnType> callback) {
  final id = _nextId++;
  map.set(id, callback);
  _keys.add(id);
}