AsyncEffectHandler<Effect, Msg> class abstract base

An EffectHandler implementation for handling effects asynchronously.

This abstract class provides a structured way to define asynchronous effect handling logic. Subclasses are required to implement the handle method, which processes the effect and emits messages if needed.

Usage:

To create a custom asynchronous effect handler, subclass AsyncEffectHandler and implement the handle method. The handle method will be called whenever an effect of the specified type is triggered.

Example:

final class MyAsyncEffectHandler extends AsyncEffectHandler<MyEffect, MyMsg> {
  @override
  Future<void> handle(MyEffect effect, MsgEmitter<MyMsg> emit) async {
    try {
      final result = await performAsyncOperation(effect.data);
      emit(MyMsg.success(result));
    } catch (error) {
      emit(MyMsg.failure(error));
    }
  }
}