You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: data_source_monitoring_service_cluster_istio.go
    path of file: ./repos/magic-modules/mmv1/third_party/terraform/services/monitoring
    
    the code of the file until where you have to start completion: package monitoring

import (
	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
)

// No tests are added in this PR as currently there is no TF-supported method that can be used to
// enable both services (Cluster Istio and Mesh Istio) in GKE
func DataSourceMonitoringServiceClusterIstio() *schema.Resource {
	ciSchema := map[string]*schema.Schema{
		"location": {
			Type:     schema.TypeString,
			Required: true,
			Description: `The location of the Kubernetes cluster in which this Istio service is defined. 
                        Corresponds to the location resource label in k8s_cluster resources.`,
		},
		"cluster_name": {
			Type:     schema.TypeString,
			Required: true,
			Description: `The name of the Kubernetes cluster in which this Istio service is defined. 
                        Corresponds to the clusterName resource label in k8s_cluster resources.`,
		},
		"service_
    
func DataSourceMonitoringServiceClusterIstio() *schema.Resource {
	ciSchema := map[string]*schema.Schema{
		"location": {
			Type:     schema.TypeString,
			Required: true,
			Description: `The location of the Kubernetes cluster in which this Istio service is defined. 
                        Corresponds to the location resource label in k8s_cluster resources.`,
		},
		"cluster_name": {
			Type:     schema.TypeString,
			Required: true,
			Description: `The name of the Kubernetes cluster in which this Istio service is defined. 
                        Corresponds to the clusterName resource label in k8s_cluster resources.`,
		},
		"service_namespace": {
			Type:     schema.TypeString,
			Required: true,
			Description: `The namespace of the Istio service underlying this service. 
                        Corresponds to the destination_service_namespace metric label in Istio metrics.`,
		},
		"service_name": {
			Type:     schema.TypeString,
			Required: true,
			Description: `The name of the Istio service underlying this service. 
                        Corresponds to the destination_service_name metric label in Istio metrics.`,
		},
	}
	filter := `cluster_istio.cluster_name="{{cluster_name}}" AND
		cluster_istio.service_namespace="{{service_namespace}}" AND
		cluster_istio.service_name="{{service_name}}" AND
		cluster_istio.location="{{location}}"`
	return dataSourceMonitoringServiceType(ciSchema, filter, dataSourceMonitoringServiceClusterIstioRead)
}