code: def process_delta(delta):
      
      kwargs = {
          "type": delta["type"],
          "date": datetime.datetime.utcfromtimestamp(delta["date"]),
          "object_id": delta["object_data"]["id"],
      }
      print(" * {type} at {date} with ID {object_id}".format(**kwargs))
docs: This is the part of the code where you would process the information
      from the webhook notification. Each delta is one change that happened,
      and might require fetching message IDs, updating your database,
      and so on.
  
      However, because this is just an example project, we'll just print
      out information about the notification, so you can see what
      information is being sent.