class_docstr: Given as a parameter to the inputhook.
class_docstr_tok: ["Given","as","a","parameter","to","the","inputhook","."]
code: def fileno(self) -> int:
      return self._fileno
  
imports: from __future__ import annotations
  import asyncio
  import os
  import select
  import selectors
  import sys
  import threading
  from asyncio import AbstractEventLoop, get_running_loop
  from selectors import BaseSelector, SelectorKey
  from typing import TYPE_CHECKING, Any, Callable, Mapping
label_desc: Use image node_id 2 for calling the InputHookContext obj's underlying member method code with example usage: obj.fileno() and returns: self