anchor.diff:  		CheckDestroy: testAccCheckContainerClusterDestroyProducer(t),
   		Steps: []resource.TestStep{
   			{
  -				Config: testAccContainerCluster_basic(clusterName),
  +				Config: testAccContainerCluster_basic_1_23_8(clusterName),
   			},
   			{
   				ResourceName:      "google_container_cluster.primary",
   				ImportState:       true,
   				ImportStateVerify: true,
  +				ImportStateVerifyIgnore: []string{"min_master_version"},
   			},
   			{
   				Config: testAccContainerCluster_withMonitoringConfigEnabled(clusterName),
  
positive.code:   name               = "%s"
    location           = "us-central1-a"
    initial_node_count = 1
    monitoring_config {
           managed_prometheus {
                   enabled = true
  
negative.code: 				ResourceName:      "google_container_cluster.primary",
  				ImportState:       true,
  				ImportStateVerify: true,
  				ImportStateVerifyIgnore: []string{"min_master_version"},
  			},
  			{
  				Config: testAccContainerCluster_withMonitoringConfigPrometheusUpdated(clusterName),
  