chore: upgrade gapic-generator-python to 0.46.3 (#151)

This PR is the result of manually running the following commands in order to pull in the latest changes from googleapis-gen which includes gapic generator version 0.46.3:

1. Download the latest docker image for owlbot-cli
```
docker pull gcr.io/repo-automation-bots/owlbot-cli:latest
```
2. Run the owlbot-cli to copy the generated client from googleapis/googleapis-gen
```
docker run --rm --user $(id -u):$(id -g) -v $(pwd):/repo -w /repo gcr.io/repo-automation-bots/owlbot-cli:latest copy-code
```
3. Download the latest docker image for owlbot-python
```
docker pull gcr.io/repo-automation-bots/owlbot-python:latest
```
4. Run the post processor image
```
docker run --user $(id -u):$(id -g) --rm -v $(pwd):/repo -w /repo gcr.io/repo-automation-bots/owlbot-python:latest
```

Other features/fixes include: 

fix: add async client to %name_%version/init.py
chore: add autogenerated snippets
chore: remove auth, policy, and options from the reserved names list
feat: support self-signed JWT flow for service accounts
chore: enable GAPIC metadata generation
chore: sort subpackages in %namespace/%name/init.py

docs/monitoring_v3/alert_policy_service.rst

@@ -5,7 +5,6 @@ AlertPolicyService
     :members:
     :inherited-members:
 
-
 .. automodule:: google.cloud.monitoring_v3.services.alert_policy_service.pagers
     :members:
     :inherited-members:

docs/monitoring_v3/group_service.rst

@@ -5,7 +5,6 @@ GroupService
     :members:
     :inherited-members:
 
-
 .. automodule:: google.cloud.monitoring_v3.services.group_service.pagers
     :members:
     :inherited-members:

docs/monitoring_v3/metric_service.rst

@@ -5,7 +5,6 @@ MetricService
     :members:
     :inherited-members:
 
-
 .. automodule:: google.cloud.monitoring_v3.services.metric_service.pagers
     :members:
     :inherited-members:

docs/monitoring_v3/notification_channel_service.rst

@@ -5,7 +5,6 @@ NotificationChannelService
     :members:
     :inherited-members:
 
-
 .. automodule:: google.cloud.monitoring_v3.services.notification_channel_service.pagers
     :members:
     :inherited-members:

docs/monitoring_v3/query_service.rst

@@ -5,7 +5,6 @@ QueryService
     :members:
     :inherited-members:
 
-
 .. automodule:: google.cloud.monitoring_v3.services.query_service.pagers
     :members:
     :inherited-members:

docs/monitoring_v3/service_monitoring_service.rst

@@ -5,7 +5,6 @@ ServiceMonitoringService
     :members:
     :inherited-members:
 
-
 .. automodule:: google.cloud.monitoring_v3.services.service_monitoring_service.pagers
     :members:
     :inherited-members:

docs/monitoring_v3/uptime_check_service.rst

@@ -5,7 +5,6 @@ UptimeCheckService
     :members:
     :inherited-members:
 
-
 .. automodule:: google.cloud.monitoring_v3.services.uptime_check_service.pagers
     :members:
     :inherited-members:

google/cloud/monitoring/__init__.py

@@ -1,5 +1,4 @@
 # -*- coding: utf-8 -*-
-
 # Copyright 2020 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,44 +14,45 @@
 # limitations under the License.
 #
 
-from google.cloud.monitoring_v3.services.alert_policy_service.async_client import (
-    AlertPolicyServiceAsyncClient,
-)
 from google.cloud.monitoring_v3.services.alert_policy_service.client import (
     AlertPolicyServiceClient,
 )
-from google.cloud.monitoring_v3.services.group_service.async_client import (
-    GroupServiceAsyncClient,
+from google.cloud.monitoring_v3.services.alert_policy_service.async_client import (
+    AlertPolicyServiceAsyncClient,
 )
 from google.cloud.monitoring_v3.services.group_service.client import GroupServiceClient
-from google.cloud.monitoring_v3.services.metric_service.async_client import (
-    MetricServiceAsyncClient,
+from google.cloud.monitoring_v3.services.group_service.async_client import (
+    GroupServiceAsyncClient,
 )
 from google.cloud.monitoring_v3.services.metric_service.client import (
     MetricServiceClient,
 )
-from google.cloud.monitoring_v3.services.notification_channel_service.async_client import (
-    NotificationChannelServiceAsyncClient,
+from google.cloud.monitoring_v3.services.metric_service.async_client import (
+    MetricServiceAsyncClient,
 )
 from google.cloud.monitoring_v3.services.notification_channel_service.client import (
     NotificationChannelServiceClient,
 )
-from google.cloud.monitoring_v3.services.query_service.async_client import (
-    QueryServiceAsyncClient,
+from google.cloud.monitoring_v3.services.notification_channel_service.async_client import (
+    NotificationChannelServiceAsyncClient,
 )
 from google.cloud.monitoring_v3.services.query_service.client import QueryServiceClient
-from google.cloud.monitoring_v3.services.service_monitoring_service.async_client import (
-    ServiceMonitoringServiceAsyncClient,
+from google.cloud.monitoring_v3.services.query_service.async_client import (
+    QueryServiceAsyncClient,
 )
 from google.cloud.monitoring_v3.services.service_monitoring_service.client import (
     ServiceMonitoringServiceClient,
 )
-from google.cloud.monitoring_v3.services.uptime_check_service.async_client import (
-    UptimeCheckServiceAsyncClient,
+from google.cloud.monitoring_v3.services.service_monitoring_service.async_client import (
+    ServiceMonitoringServiceAsyncClient,
 )
 from google.cloud.monitoring_v3.services.uptime_check_service.client import (
     UptimeCheckServiceClient,
 )
+from google.cloud.monitoring_v3.services.uptime_check_service.async_client import (
+    UptimeCheckServiceAsyncClient,
+)
+
 from google.cloud.monitoring_v3.types.alert import AlertPolicy
 from google.cloud.monitoring_v3.types.alert_service import CreateAlertPolicyRequest
 from google.cloud.monitoring_v3.types.alert_service import DeleteAlertPolicyRequest
@@ -61,10 +61,10 @@
 from google.cloud.monitoring_v3.types.alert_service import ListAlertPoliciesResponse
 from google.cloud.monitoring_v3.types.alert_service import UpdateAlertPolicyRequest
 from google.cloud.monitoring_v3.types.common import Aggregation
-from google.cloud.monitoring_v3.types.common import ComparisonType
-from google.cloud.monitoring_v3.types.common import ServiceTier
 from google.cloud.monitoring_v3.types.common import TimeInterval
 from google.cloud.monitoring_v3.types.common import TypedValue
+from google.cloud.monitoring_v3.types.common import ComparisonType
+from google.cloud.monitoring_v3.types.common import ServiceTier
 from google.cloud.monitoring_v3.types.dropped_labels import DroppedLabels
 from google.cloud.monitoring_v3.types.group import Group
 from google.cloud.monitoring_v3.types.group_service import CreateGroupRequest
@@ -186,10 +186,10 @@
 )
 from google.cloud.monitoring_v3.types.service_service import UpdateServiceRequest
 from google.cloud.monitoring_v3.types.span_context import SpanContext
-from google.cloud.monitoring_v3.types.uptime import GroupResourceType
 from google.cloud.monitoring_v3.types.uptime import InternalChecker
 from google.cloud.monitoring_v3.types.uptime import UptimeCheckConfig
 from google.cloud.monitoring_v3.types.uptime import UptimeCheckIp
+from google.cloud.monitoring_v3.types.uptime import GroupResourceType
 from google.cloud.monitoring_v3.types.uptime import UptimeCheckRegion
 from google.cloud.monitoring_v3.types.uptime_service import (
     CreateUptimeCheckConfigRequest,
@@ -211,114 +211,114 @@
 )
 
 __all__ = (
-    "Aggregation",
-    "AlertPolicy",
-    "AlertPolicyServiceAsyncClient",
     "AlertPolicyServiceClient",
-    "BasicSli",
-    "ComparisonType",
+    "AlertPolicyServiceAsyncClient",
+    "GroupServiceClient",
+    "GroupServiceAsyncClient",
+    "MetricServiceClient",
+    "MetricServiceAsyncClient",
+    "NotificationChannelServiceClient",
+    "NotificationChannelServiceAsyncClient",
+    "QueryServiceClient",
+    "QueryServiceAsyncClient",
+    "ServiceMonitoringServiceClient",
+    "ServiceMonitoringServiceAsyncClient",
+    "UptimeCheckServiceClient",
+    "UptimeCheckServiceAsyncClient",
+    "AlertPolicy",
     "CreateAlertPolicyRequest",
-    "CreateGroupRequest",
-    "CreateMetricDescriptorRequest",
-    "CreateNotificationChannelRequest",
-    "CreateServiceLevelObjectiveRequest",
-    "CreateServiceRequest",
-    "CreateTimeSeriesError",
-    "CreateTimeSeriesRequest",
-    "CreateTimeSeriesSummary",
-    "CreateUptimeCheckConfigRequest",
     "DeleteAlertPolicyRequest",
-    "DeleteGroupRequest",
-    "DeleteMetricDescriptorRequest",
-    "DeleteNotificationChannelRequest",
-    "DeleteServiceLevelObjectiveRequest",
-    "DeleteServiceRequest",
-    "DeleteUptimeCheckConfigRequest",
-    "DistributionCut",
-    "DroppedLabels",
     "GetAlertPolicyRequest",
-    "GetGroupRequest",
-    "GetMetricDescriptorRequest",
-    "GetMonitoredResourceDescriptorRequest",
-    "GetNotificationChannelDescriptorRequest",
-    "GetNotificationChannelRequest",
-    "GetNotificationChannelVerificationCodeRequest",
-    "GetNotificationChannelVerificationCodeResponse",
-    "GetServiceLevelObjectiveRequest",
-    "GetServiceRequest",
-    "GetUptimeCheckConfigRequest",
-    "Group",
-    "GroupResourceType",
-    "GroupServiceAsyncClient",
-    "GroupServiceClient",
-    "InternalChecker",
-    "LabelValue",
     "ListAlertPoliciesRequest",
     "ListAlertPoliciesResponse",
+    "UpdateAlertPolicyRequest",
+    "Aggregation",
+    "TimeInterval",
+    "TypedValue",
+    "ComparisonType",
+    "ServiceTier",
+    "DroppedLabels",
+    "Group",
+    "CreateGroupRequest",
+    "DeleteGroupRequest",
+    "GetGroupRequest",
     "ListGroupMembersRequest",
     "ListGroupMembersResponse",
     "ListGroupsRequest",
     "ListGroupsResponse",
+    "UpdateGroupRequest",
+    "LabelValue",
+    "Point",
+    "QueryError",
+    "TextLocator",
+    "TimeSeries",
+    "TimeSeriesData",
+    "TimeSeriesDescriptor",
+    "CreateMetricDescriptorRequest",
+    "CreateTimeSeriesError",
+    "CreateTimeSeriesRequest",
+    "CreateTimeSeriesSummary",
+    "DeleteMetricDescriptorRequest",
+    "GetMetricDescriptorRequest",
+    "GetMonitoredResourceDescriptorRequest",
     "ListMetricDescriptorsRequest",
     "ListMetricDescriptorsResponse",
     "ListMonitoredResourceDescriptorsRequest",
     "ListMonitoredResourceDescriptorsResponse",
-    "ListNotificationChannelDescriptorsRequest",
-    "ListNotificationChannelDescriptorsResponse",
-    "ListNotificationChannelsRequest",
-    "ListNotificationChannelsResponse",
-    "ListServiceLevelObjectivesRequest",
-    "ListServiceLevelObjectivesResponse",
-    "ListServicesRequest",
-    "ListServicesResponse",
     "ListTimeSeriesRequest",
     "ListTimeSeriesResponse",
-    "ListUptimeCheckConfigsRequest",
-    "ListUptimeCheckConfigsResponse",
-    "ListUptimeCheckIpsRequest",
-    "ListUptimeCheckIpsResponse",
-    "MetricServiceAsyncClient",
-    "MetricServiceClient",
-    "MutationRecord",
-    "NotificationChannel",
-    "NotificationChannelDescriptor",
-    "NotificationChannelServiceAsyncClient",
-    "NotificationChannelServiceClient",
-    "Point",
-    "QueryError",
     "QueryErrorList",
-    "QueryServiceAsyncClient",
-    "QueryServiceClient",
     "QueryTimeSeriesRequest",
     "QueryTimeSeriesResponse",
+    "MutationRecord",
+    "NotificationChannel",
+    "NotificationChannelDescriptor",
+    "CreateNotificationChannelRequest",
+    "DeleteNotificationChannelRequest",
+    "GetNotificationChannelDescriptorRequest",
+    "GetNotificationChannelRequest",
+    "GetNotificationChannelVerificationCodeRequest",
+    "GetNotificationChannelVerificationCodeResponse",
+    "ListNotificationChannelDescriptorsRequest",
+    "ListNotificationChannelDescriptorsResponse",
+    "ListNotificationChannelsRequest",
+    "ListNotificationChannelsResponse",
+    "SendNotificationChannelVerificationCodeRequest",
+    "UpdateNotificationChannelRequest",
+    "VerifyNotificationChannelRequest",
+    "BasicSli",
+    "DistributionCut",
     "Range",
     "RequestBasedSli",
-    "SendNotificationChannelVerificationCodeRequest",
     "Service",
     "ServiceLevelIndicator",
     "ServiceLevelObjective",
-    "ServiceMonitoringServiceAsyncClient",
-    "ServiceMonitoringServiceClient",
-    "ServiceTier",
-    "SpanContext",
-    "TextLocator",
-    "TimeInterval",
-    "TimeSeries",
-    "TimeSeriesData",
-    "TimeSeriesDescriptor",
     "TimeSeriesRatio",
-    "TypedValue",
-    "UpdateAlertPolicyRequest",
-    "UpdateGroupRequest",
-    "UpdateNotificationChannelRequest",
+    "WindowsBasedSli",
+    "CreateServiceLevelObjectiveRequest",
+    "CreateServiceRequest",
+    "DeleteServiceLevelObjectiveRequest",
+    "DeleteServiceRequest",
+    "GetServiceLevelObjectiveRequest",
+    "GetServiceRequest",
+    "ListServiceLevelObjectivesRequest",
+    "ListServiceLevelObjectivesResponse",
+    "ListServicesRequest",
+    "ListServicesResponse",
     "UpdateServiceLevelObjectiveRequest",
     "UpdateServiceRequest",
-    "UpdateUptimeCheckConfigRequest",
+    "SpanContext",
+    "InternalChecker",
     "UptimeCheckConfig",
     "UptimeCheckIp",
+    "GroupResourceType",
     "UptimeCheckRegion",
-    "UptimeCheckServiceAsyncClient",
-    "UptimeCheckServiceClient",
-    "VerifyNotificationChannelRequest",
-    "WindowsBasedSli",
+    "CreateUptimeCheckConfigRequest",
+    "DeleteUptimeCheckConfigRequest",
+    "GetUptimeCheckConfigRequest",
+    "ListUptimeCheckConfigsRequest",
+    "ListUptimeCheckConfigsResponse",
+    "ListUptimeCheckIpsRequest",
+    "ListUptimeCheckIpsResponse",
+    "UpdateUptimeCheckConfigRequest",
 )