def service_update(self, context, host_name, binary, params_to_update):
        return self.cells_rpcapi.service_update(
            context, host_name, binary, params_to_update)
Ensures nothing is added to the command's ``arg_table`` if no
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/compute/cells_api.py/HostAPI.service_update--crossover with--dataset/ETHPy150Open aws/aws-cli/tests/unit/customizations/s3/syncstrategy/test_base.py/TestBaseSync.test_no_add_sync_argument_for_no_argument_specified