anchor.diff:    initial_node_count = 1
   
     node_config {
  -    machine_type = "g1-small"
  +    machine_type = "e2-medium"
       disk_size_gb = 15
       oauth_scopes = ["compute-rw", "storage-ro", "logging-write", "monitoring"]
     }
  
positive.code:     name = "%s"
      initial_node_count = 1
      node_config {
        machine_type = "n2d-standard-2"
      }
    }
  
  
negative.code:     name = "%s"
      initial_node_count = 1
      node_config {
        machine_type = "e2-medium"
      }
    }
  
  