rxgroups/src/main/java/com/airbnb/rxgroups/ObservableGroup.java
public void dispose() {
    forAllObservables(new Consumer<ManagedObservable<?>>() {
      @Override
      public void accept(ManagedObservable<?> managedObservable) {
        managedObservable.dispose();
      }
    });
  }
public void dispose() {
    forAllObservables(new Consumer<ManagedObservable<?>>() {
      @Override
      public void accept(ManagedObservable<?> managedObservable) {
        managedObservable.dispose();
      }
    });
  }
Disposes all Observables managed by this group. Also clears any references to existing
{@link Observer} objects in order to avoid leaks. This does not disconnect from the upstream
Observable, so it can be resumed upon calling {@link #observable(Observer)} if
needed.