def update_with_http_info(resource_group_name, rule_name, alert_rules_resource, custom_headers:nil)
      update_async(resource_group_name, rule_name, alert_rules_resource, custom_headers:custom_headers).value!
    end
def update_with_http_info(resource_group_name, rule_name, alert_rules_resource, custom_headers:nil)
      update_async(resource_group_name, rule_name, alert_rules_resource, custom_headers:custom_headers).value!
    end
Updates an existing AlertRuleResource. To update other fields use the
 CreateOrUpdate method.

 @param resource_group_name [String] The name of the resource group.
 @param rule_name [String] The name of the rule.
 @param alert_rules_resource [AlertRuleResourcePatch] Parameters supplied to
 the operation.
 @param custom_headers [Hash{String => String}] A hash of custom headers that
 will be added to the HTTP request.

 @return [MsRestAzure::AzureOperationResponse] HTTP response information.