class_docstr: When no :class:`.Application` is running,
  :func:`.get_app` will run an instance of this :class:`.DummyApplication` instead.
code: def __init__(self) -> None:
      super().__init__(output=DummyOutput(), input=DummyInput())
  
file_path: catboost/contrib/python/prompt-toolkit/py3/prompt_toolkit/application/dummy.py
imports: from __future__ import annotations
  from typing import Callable
  from prompt_toolkit.eventloop import InputHook
  from prompt_toolkit.formatted_text import AnyFormattedText
  from prompt_toolkit.input import DummyInput
  from prompt_toolkit.output import DummyOutput
  from .application import Application
label_desc: Use image node_id 1 to create a new DummyApplication object from inherited base classes: Application with example: obj = DummyApplication()