def METHOD_NAME(internet_gateway_rule_name: Optional[str] = None,
                              resource_group_name: Optional[str] = None,
                              opts: Optional[pulumi.InvokeOptions] = None) -> AwaitableGetInternetGatewayRuleResult:
    """
    Gets an Internet Gateway Rule resource.
    :param str internet_gateway_rule_name: Name of the Internet Gateway rule.
    :param str resource_group_name: The name of the resource group. The name is case insensitive.
    """
    __args__ = dict()
    __args__['internetGatewayRuleName'] = internet_gateway_rule_name
    __args__['resourceGroupName'] = resource_group_name
    opts = pulumi.InvokeOptions.merge(_utilities.get_invoke_opts_defaults(), opts)
    __ret__ = pulumi.runtime.invoke('azure-native:managednetworkfabric/v20230615:getInternetGatewayRule', __args__, opts=opts, typ=GetInternetGatewayRuleResult).value
    return AwaitableGetInternetGatewayRuleResult(
        annotation=pulumi.get(__ret__, 'annotation'),
        id=pulumi.get(__ret__, 'id'),
        internet_gateway_ids=pulumi.get(__ret__, 'internet_gateway_ids'),
        location=pulumi.get(__ret__, 'location'),
        name=pulumi.get(__ret__, 'name'),
        provisioning_state=pulumi.get(__ret__, 'provisioning_state'),
        rule_properties=pulumi.get(__ret__, 'rule_properties'),
        system_data=pulumi.get(__ret__, 'system_data'),
        tags=pulumi.get(__ret__, 'tags'),
        type=pulumi.get(__ret__, 'type'))