class_docstr: :class:`.History` class that stores all strings in a file.
code: def __init__(self, filename: str) -> None:
      self.filename = filename
      super().__init__()
  
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 to create a new FileHistory object from inherited base classes: History with example: obj = FileHistory(filename)