class_docstr: Input for use in a `DummyApplication`
  
  If used in an actual application, it will make the application render
  itself once and exit immediately, due to an `EOFError`.
code: def cooked_mode(self) -> ContextManager[None]:
      return _dummy_context_manager()
  
imports: from __future__ import annotations
  from abc import ABCMeta, abstractmethod, abstractproperty
  from contextlib import contextmanager
  from typing import Callable, ContextManager, Generator
  from prompt_toolkit.key_binding import KeyPress
label_desc: Use image node_id 6 for calling the DummyInput obj's underlying member method code with example usage: obj.cooked_mode() and returns: _dummy_context_manager