migrate monitoring_v3 python part to use microgen

PiperOrigin-RevId: 335029068

google/monitoring/v3/BUILD.bazel

@@ -183,71 +183,25 @@ go_gapic_assembly_pkg(
 ##############################################################################
 # Python
 ##############################################################################
+# This library is using Python microgenerator.
+# DO NOT OVERRIDE this Python section with autogenerated rules.
 load(
     "@com_google_googleapis_imports//:imports.bzl",
-    "moved_proto_library",
-    "py_gapic_assembly_pkg",
-    "py_gapic_library",
-    "py_grpc_library",
-    "py_proto_library",
-)
-
-moved_proto_library(
-    name = "monitoring_moved_proto",
-    srcs = [":monitoring_proto"],
-    deps = [
-        "//google/api:annotations_proto",
-        "//google/api:client_proto",
-        "//google/api:distribution_proto",
-        "//google/api:field_behavior_proto",
-        "//google/api:label_proto",
-        "//google/api:launch_stage_proto",
-        "//google/api:metric_proto",
-        "//google/api:monitored_resource_proto",
-        "//google/api:resource_proto",
-        "//google/rpc:status_proto",
-        "//google/type:calendar_period_proto",
-        "@com_google_protobuf//:duration_proto",
-        "@com_google_protobuf//:empty_proto",
-        "@com_google_protobuf//:field_mask_proto",
-        "@com_google_protobuf//:struct_proto",
-        "@com_google_protobuf//:timestamp_proto",
-        "@com_google_protobuf//:wrappers_proto",
-    ],
-)
-
-py_proto_library(
-    name = "monitoring_py_proto",
-    plugin = "@protoc_docs_plugin//:docs_plugin",
-    deps = [":monitoring_moved_proto"],
-)
-
-py_grpc_library(
-    name = "monitoring_py_grpc",
-    srcs = [":monitoring_moved_proto"],
-    deps = [":monitoring_py_proto"],
+    py_gapic_assembly_pkg = "py_gapic_assembly_pkg2",
+    py_gapic_library = "py_gapic_library2",
 )
 
 py_gapic_library(
     name = "monitoring_py_gapic",
-    src = ":monitoring_proto_with_info",
-    gapic_yaml = "monitoring_gapic.yaml",
+    srcs = [":monitoring_proto"],
+    opt_args = ["python-gapic-namespace=google.cloud"],
     grpc_service_config = "monitoring_grpc_service_config.json",
-    package = "google.monitoring.v3",
-    service_yaml = "monitoring.yaml",
-    deps = [
-        ":monitoring_py_grpc",
-        ":monitoring_py_proto",
-    ],
 )
 
-# Open Source Packages
 py_gapic_assembly_pkg(
     name = "monitoring-v3-py",
     deps = [
         ":monitoring_py_gapic",
-        ":monitoring_py_grpc",
-        ":monitoring_py_proto",
     ],
 )