code: def _get_user(self) -> Dict:
          
  
          if 'callback_query' in self._update:
              return self._update['callback_query']['from']
          elif 'inline_query' in self._update:
              return self._update['inline_query']['from']
          elif 'message' in self._update:
              return self._update['message']['from']
docs: Same thing as for `_get_chat()` but for the user related to the
          message.