def METHOD_NAME(cls, *args, **kwargs):
    if cls._args_schema is not None:
        return cls._args_schema
    cls._args_schema = super().METHOD_NAME(*args, **kwargs)
    # define Arg Group ""
    _args_schema = cls._args_schema
    _args_schema.resource_uri = AAZStrArg(
        options=["--resource-uri"],
        help="The identifier of the resource.",
        required=True,
    )
    _args_schema.metricnamespace = AAZStrArg(
        options=["--metricnamespace"],
        help="Metric namespace to query metric definitions for.",
    )
    return cls._args_schema