def METHOD_NAME(self, id):
    """Removes context from an observable
    :<json object context: Context JSON to be added. Must include a ``source`` key.
    :>json object: The context object that was actually delete
    """
    observable = get_object_or_404(self.objectmanager, id=id)
    context = request.json.pop("context", {})
    observable.METHOD_NAME(context)
    return render(context)