code: def remove_service_subnet(self, context_id, subnet_id):
          
          return self.context.removeServiceSubnetFromNetworkTunnel(subnet_id,
                                                                   id=context_id)
docs: Removes a service subnet from a tunnel context.
  
          :param int context_id: The id-value representing the context instance.
          :param int subnet_id: The id-value representing the service subnet.
          :return bool: True if service subnet removal was successful.