def METHOD_NAME(resource_group_name: Optional[pulumi.Input[str]] = None,
                                rule_name: Optional[pulumi.Input[str]] = None,
                                workspace_name: Optional[pulumi.Input[str]] = None,
                                opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetIpFirewallRuleResult]:
    """
    Get a firewall rule
    Azure REST API version: 2021-06-01.
    :param str resource_group_name: The name of the resource group. The name is case insensitive.
    :param str rule_name: The IP firewall rule name
    :param str workspace_name: The name of the workspace.
    """
    ...