docs: def get_reply_to_names(self, mention):
          """
          Get a sorted list of unique usernames mentioned in the message, excluding the bot's own name
          :param mention: JSON mention object from twitter
          :return: list of usernames
          """
          mention_list = [user['screen_name'] for user in mention['entities']['user_mentions']]
          mention_list.append(mention['user']['screen_name'])
          reply_to_names = set(mention_list)
          # Do not include bot's own name
          reply_to_names.discard(self.screen_name)
          return sorted(list(reply_to_names))