code: def parse_feeds(self, message_channel=True):
          
          if parse:
              for feed_url in self.feeds:
                  feed = parse(feed_url)
                  for item in feed.entries:
                      if item["id"] not in self.feed_items:
                          self.feed_items.add(item["id"])
                          if message_channel:
                              message = self.format_item_message(feed, item)
                              self.message_channel(message)
                              return
docs: Iterates through each of the feed URLs, parses their items, and
          sends any items to the channel that have not been previously
          been parsed.