docs: def disable_node(self, service_name, node_name):
          """
          Disables a given node name for the given service name via the
          "disable server" HAProxy command.
          """
          logger.info("Disabling server %s/%s", service_name, node_name)
          return self.send_command(
              "disable server %s/%s" % (service_name, node_name)
          )