# Observable

Empty class that has been mixed-in with Monologue which provide a destroy method that will
call off() on itself.

## constructor()

Create a new instance.

## destroy()

Remove any listener.

## on(topic, callback): subscription

From Monologue.

## off(topic)

From Monologue.

## off()

From Monologue.

## emit(topic, data)

From Monologue.
