code: def get_chat(self, chat_id):
          
          result = apihelper.get_chat(self.token, chat_id)
          return types.Chat.de_json(result)
docs: Use this method to get up to date information about the chat (current name of the user for one-on-one
          conversations, current username of a user, group or channel, etc.). Returns a Chat object on success.
          :param chat_id:
          :return: