class_docstr: :class:`.History` object that doesn't remember anything.
code: def load_history_strings(self) -> Iterable[str]:
      return []
  
imports: from __future__ import annotations
  import datetime
  import os
  import threading
  from abc import ABCMeta, abstractmethod
  from asyncio import get_running_loop
  from typing import AsyncGenerator, Iterable, Sequence
label_desc: Use image node_id 1 for calling the DummyHistory obj's underlying member method code with example usage: obj.load_history_strings() and returns: list