All dispatcher classes and global dispatcher.
This does not include dispatcher impl classes. dispatcher_impl.dart exports this library as well as the dispatcher impl classes.
The global dispatcher can be hidden by appending
hide dispatcher to the
import 'package:bloc_flux/dispatcher.dart' hide dispatcher;
import 'package:bloc_fluc/dispatcher_impl.dart' hide dispatcher;
import 'package:bloc_flux/bloc_flux.dart' hide dispatcher;
dispatcher is lazily instantiated so if it is never accessed it will not be instantiated.