//first example: listeners are initialized directly in the controller
public class ExampleControllerWithEvents
{
    void Initialize()
    {
        _eventBus.AddListener(firstEventType,FirstListener);
        _eventBus.AddListener(secondEventType,SecondListener);
    }

    void FirstListener(){...}
    void SecondListener(){...}
}

//second example: listeners are managed by additional layer
public class Binder
{
    void Initialize()
    {
        _eventBus.AddListener(ExampleControllerFactory.Create().FirstListener);
        _eventBus.AddListener(ExampleControllerFactory.Create().FirstListener);
    }
}

public class ExampleController
{
    void FirstListener(){...}
    void SecondListener(){...}
}