docs: def connect(self):
          """
          Creates a new KazooClient and establishes a connection.
  
          Passes the client the `handle_connection_change` method as a callback
          to fire when the Zookeeper connection changes state.
          """
          self.client = client.KazooClient(hosts=",".join(self.hosts))
  
          self.client.add_listener(self.handle_connection_change)
          self.client.start_async()