def METHOD_NAME(authorization_rule_name: Optional[pulumi.Input[str]] = None,
                                            namespace_name: Optional[pulumi.Input[str]] = None,
                                            resource_group_name: Optional[pulumi.Input[str]] = None,
                                            opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetNamespaceAuthorizationRuleResult]:
    """
    Gets an AuthorizationRule for a Namespace by rule name.
    :param str authorization_rule_name: The authorization rule name.
    :param str namespace_name: The Namespace name
    :param str resource_group_name: Name of the resource group within the azure subscription.
    """
    ...