def clear_all_messages():
    BackendMessage.objects.filter(name=BACKEND_NAME).delete()
To move the cursor to the last child of the current node.
dataset/ETHPy150Open rapidsms/rapidsms/rapidsms/contrib/httptester/storage.py/clear_all_messages--crossover with--dataset/ETHPy150Open idanarye/breeze.vim/autoload/breeze/core.py/Breeze.goto_last_child