Traceback (most recent call last):
  File "C:\Python38\lib\threading.py", line 932, in _bootstrap_inner
    self.run()
  File "C:\Python38\lib\threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "main.py", line 58, in main_telegram
    updater.idle()
  File "C:\Python38\lib\site-packages\python_telegram_bot-12.8-py3.8.egg\telegram\ext\updater.py", line 604, in idle
    signal(sig, self.signal_handler)
  File "C:\Python38\lib\signal.py", line 47, in signal
    handler = _signal.signal(_enum_to_int(signalnum), _enum_to_int(handler))
ValueError: signal only works in main thread