diff --git a/googleapis/api/annotations/client.pb.go b/googleapis/api/annotations/client.pb.go
index fe19e8f97..aa69fb4d5 100644
--- a/googleapis/api/annotations/client.pb.go
+++ b/googleapis/api/annotations/client.pb.go
@@ -719,6 +719,8 @@ type PythonSettings struct {
 
 	// Some settings.
 	Common *CommonLanguageSettings `protobuf:"bytes,1,opt,name=common,proto3" json:"common,omitempty"`
+	// Experimental features to be included during client library generation.
+	ExperimentalFeatures *PythonSettings_ExperimentalFeatures `protobuf:"bytes,2,opt,name=experimental_features,json=experimentalFeatures,proto3" json:"experimental_features,omitempty"`
 }
 
 func (x *PythonSettings) Reset() {
@@ -760,6 +762,13 @@ func (x *PythonSettings) GetCommon() *CommonLanguageSettings {
 	return nil
 }
 
+func (x *PythonSettings) GetExperimentalFeatures() *PythonSettings_ExperimentalFeatures {
+	if x != nil {
+		return x.ExperimentalFeatures
+	}
+	return nil
+}
+
 // Settings for Node client libraries.
 type NodeSettings struct {
 	state         protoimpl.MessageState
@@ -1114,6 +1123,60 @@ func (x *MethodSettings) GetAutoPopulatedFields() []string {
 	return nil
 }
 
+// Experimental features to be included during client library generation.
+// These fields will be deprecated once the feature graduates and is enabled
+// by default.
+type PythonSettings_ExperimentalFeatures struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Enables generation of asynchronous REST clients if `rest` transport is
+	// enabled. By default, asynchronous REST clients will not be generated.
+	// This feature will be enabled by default 1 month after launching the
+	// feature in preview packages.
+	RestAsyncIoEnabled bool `protobuf:"varint,1,opt,name=rest_async_io_enabled,json=restAsyncIoEnabled,proto3" json:"rest_async_io_enabled,omitempty"`
+}
+
+func (x *PythonSettings_ExperimentalFeatures) Reset() {
+	*x = PythonSettings_ExperimentalFeatures{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_google_api_client_proto_msgTypes[13]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PythonSettings_ExperimentalFeatures) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PythonSettings_ExperimentalFeatures) ProtoMessage() {}
+
+func (x *PythonSettings_ExperimentalFeatures) ProtoReflect() protoreflect.Message {
+	mi := &file_google_api_client_proto_msgTypes[13]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PythonSettings_ExperimentalFeatures.ProtoReflect.Descriptor instead.
+func (*PythonSettings_ExperimentalFeatures) Descriptor() ([]byte, []int) {
+	return file_google_api_client_proto_rawDescGZIP(), []int{6, 0}
+}
+
+func (x *PythonSettings_ExperimentalFeatures) GetRestAsyncIoEnabled() bool {
+	if x != nil {
+		return x.RestAsyncIoEnabled
+	}
+	return false
+}
+
 // Describes settings to use when generating API methods that use the
 // long-running operation pattern.
 // All default values below are from those used in the client library
@@ -1142,7 +1205,7 @@ type MethodSettings_LongRunning struct {
 func (x *MethodSettings_LongRunning) Reset() {
 	*x = MethodSettings_LongRunning{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_google_api_client_proto_msgTypes[15]
+		mi := &file_google_api_client_proto_msgTypes[16]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1155,7 +1218,7 @@ func (x *MethodSettings_LongRunning) String() string {
 func (*MethodSettings_LongRunning) ProtoMessage() {}
 
 func (x *MethodSettings_LongRunning) ProtoReflect() protoreflect.Message {
-	mi := &file_google_api_client_proto_msgTypes[15]
+	mi := &file_google_api_client_proto_msgTypes[16]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1460,132 +1523,143 @@ var file_google_api_client_proto_rawDesc = []byte{
 	0x73, 0x12, 0x3a, 0x0a, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28,
 	0x0b, 0x32, 0x22, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43,
 	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x4c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x53, 0x65, 0x74,
-	0x74, 0x69, 0x6e, 0x67, 0x73, 0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x22, 0x4c, 0x0a,
-	0x0e, 0x50, 0x79, 0x74, 0x68, 0x6f, 0x6e, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12,
-	0x3a, 0x0a, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32,
-	0x22, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x6f, 0x6d,
-	0x6d, 0x6f, 0x6e, 0x4c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x53, 0x65, 0x74, 0x74, 0x69,
-	0x6e, 0x67, 0x73, 0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x22, 0x4a, 0x0a, 0x0c, 0x4e,
-	0x6f, 0x64, 0x65, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x3a, 0x0a, 0x06, 0x63,
-	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x22, 0x2e, 0x67, 0x6f,
-	0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x4c,
-	0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x52,
-	0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x22, 0xae, 0x04, 0x0a, 0x0e, 0x44, 0x6f, 0x74, 0x6e,
-	0x65, 0x74, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x3a, 0x0a, 0x06, 0x63, 0x6f,
+	0x74, 0x69, 0x6e, 0x67, 0x73, 0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x22, 0xfd, 0x01,
+	0x0a, 0x0e, 0x50, 0x79, 0x74, 0x68, 0x6f, 0x6e, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73,
+	0x12, 0x3a, 0x0a, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b,
+	0x32, 0x22, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x6f,
+	0x6d, 0x6d, 0x6f, 0x6e, 0x4c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x53, 0x65, 0x74, 0x74,
+	0x69, 0x6e, 0x67, 0x73, 0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x12, 0x64, 0x0a, 0x15,
+	0x65, 0x78, 0x70, 0x65, 0x72, 0x69, 0x6d, 0x65, 0x6e, 0x74, 0x61, 0x6c, 0x5f, 0x66, 0x65, 0x61,
+	0x74, 0x75, 0x72, 0x65, 0x73, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x2f, 0x2e, 0x67, 0x6f,
+	0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x50, 0x79, 0x74, 0x68, 0x6f, 0x6e, 0x53,
+	0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x2e, 0x45, 0x78, 0x70, 0x65, 0x72, 0x69, 0x6d, 0x65,
+	0x6e, 0x74, 0x61, 0x6c, 0x46, 0x65, 0x61, 0x74, 0x75, 0x72, 0x65, 0x73, 0x52, 0x14, 0x65, 0x78,
+	0x70, 0x65, 0x72, 0x69, 0x6d, 0x65, 0x6e, 0x74, 0x61, 0x6c, 0x46, 0x65, 0x61, 0x74, 0x75, 0x72,
+	0x65, 0x73, 0x1a, 0x49, 0x0a, 0x14, 0x45, 0x78, 0x70, 0x65, 0x72, 0x69, 0x6d, 0x65, 0x6e, 0x74,
+	0x61, 0x6c, 0x46, 0x65, 0x61, 0x74, 0x75, 0x72, 0x65, 0x73, 0x12, 0x31, 0x0a, 0x15, 0x72, 0x65,
+	0x73, 0x74, 0x5f, 0x61, 0x73, 0x79, 0x6e, 0x63, 0x5f, 0x69, 0x6f, 0x5f, 0x65, 0x6e, 0x61, 0x62,
+	0x6c, 0x65, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x08, 0x52, 0x12, 0x72, 0x65, 0x73, 0x74, 0x41,
+	0x73, 0x79, 0x6e, 0x63, 0x49, 0x6f, 0x45, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x22, 0x4a, 0x0a,
+	0x0c, 0x4e, 0x6f, 0x64, 0x65, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x3a, 0x0a,
+	0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x22, 0x2e,
+	0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x6f,
+	0x6e, 0x4c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67,
+	0x73, 0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x22, 0xae, 0x04, 0x0a, 0x0e, 0x44, 0x6f,
+	0x74, 0x6e, 0x65, 0x74, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x3a, 0x0a, 0x06,
+	0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x22, 0x2e, 0x67,
+	0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e,
+	0x4c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73,
+	0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x12, 0x5a, 0x0a, 0x10, 0x72, 0x65, 0x6e, 0x61,
+	0x6d, 0x65, 0x64, 0x5f, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x73, 0x18, 0x02, 0x20, 0x03,
+	0x28, 0x0b, 0x32, 0x2f, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e,
+	0x44, 0x6f, 0x74, 0x6e, 0x65, 0x74, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x2e, 0x52,
+	0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x73, 0x45, 0x6e,
+	0x74, 0x72, 0x79, 0x52, 0x0f, 0x72, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x53, 0x65, 0x72, 0x76,
+	0x69, 0x63, 0x65, 0x73, 0x12, 0x5d, 0x0a, 0x11, 0x72, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x5f,
+	0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32,
+	0x30, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x44, 0x6f, 0x74,
+	0x6e, 0x65, 0x74, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x2e, 0x52, 0x65, 0x6e, 0x61,
+	0x6d, 0x65, 0x64, 0x52, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, 0x45, 0x6e, 0x74, 0x72,
+	0x79, 0x52, 0x10, 0x72, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x52, 0x65, 0x73, 0x6f, 0x75, 0x72,
+	0x63, 0x65, 0x73, 0x12, 0x2b, 0x0a, 0x11, 0x69, 0x67, 0x6e, 0x6f, 0x72, 0x65, 0x64, 0x5f, 0x72,
+	0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, 0x18, 0x04, 0x20, 0x03, 0x28, 0x09, 0x52, 0x10,
+	0x69, 0x67, 0x6e, 0x6f, 0x72, 0x65, 0x64, 0x52, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73,
+	0x12, 0x38, 0x0a, 0x18, 0x66, 0x6f, 0x72, 0x63, 0x65, 0x64, 0x5f, 0x6e, 0x61, 0x6d, 0x65, 0x73,
+	0x70, 0x61, 0x63, 0x65, 0x5f, 0x61, 0x6c, 0x69, 0x61, 0x73, 0x65, 0x73, 0x18, 0x05, 0x20, 0x03,
+	0x28, 0x09, 0x52, 0x16, 0x66, 0x6f, 0x72, 0x63, 0x65, 0x64, 0x4e, 0x61, 0x6d, 0x65, 0x73, 0x70,
+	0x61, 0x63, 0x65, 0x41, 0x6c, 0x69, 0x61, 0x73, 0x65, 0x73, 0x12, 0x35, 0x0a, 0x16, 0x68, 0x61,
+	0x6e, 0x64, 0x77, 0x72, 0x69, 0x74, 0x74, 0x65, 0x6e, 0x5f, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x74,
+	0x75, 0x72, 0x65, 0x73, 0x18, 0x06, 0x20, 0x03, 0x28, 0x09, 0x52, 0x15, 0x68, 0x61, 0x6e, 0x64,
+	0x77, 0x72, 0x69, 0x74, 0x74, 0x65, 0x6e, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65,
+	0x73, 0x1a, 0x42, 0x0a, 0x14, 0x52, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x53, 0x65, 0x72, 0x76,
+	0x69, 0x63, 0x65, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14, 0x0a, 0x05, 0x76,
+	0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75,
+	0x65, 0x3a, 0x02, 0x38, 0x01, 0x1a, 0x43, 0x0a, 0x15, 0x52, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64,
+	0x52, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x10,
+	0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79,
+	0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38, 0x01, 0x22, 0x4a, 0x0a, 0x0c, 0x52, 0x75,
+	0x62, 0x79, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x3a, 0x0a, 0x06, 0x63, 0x6f,
 	0x6d, 0x6d, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x22, 0x2e, 0x67, 0x6f, 0x6f,
 	0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x4c, 0x61,
 	0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x52, 0x06,
-	0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x12, 0x5a, 0x0a, 0x10, 0x72, 0x65, 0x6e, 0x61, 0x6d, 0x65,
-	0x64, 0x5f, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x73, 0x18, 0x02, 0x20, 0x03, 0x28, 0x0b,
-	0x32, 0x2f, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x44, 0x6f,
-	0x74, 0x6e, 0x65, 0x74, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x2e, 0x52, 0x65, 0x6e,
-	0x61, 0x6d, 0x65, 0x64, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x73, 0x45, 0x6e, 0x74, 0x72,
-	0x79, 0x52, 0x0f, 0x72, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63,
-	0x65, 0x73, 0x12, 0x5d, 0x0a, 0x11, 0x72, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x5f, 0x72, 0x65,
-	0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x30, 0x2e,
-	0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x44, 0x6f, 0x74, 0x6e, 0x65,
-	0x74, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x2e, 0x52, 0x65, 0x6e, 0x61, 0x6d, 0x65,
-	0x64, 0x52, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x52,
-	0x10, 0x72, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x52, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65,
-	0x73, 0x12, 0x2b, 0x0a, 0x11, 0x69, 0x67, 0x6e, 0x6f, 0x72, 0x65, 0x64, 0x5f, 0x72, 0x65, 0x73,
-	0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, 0x18, 0x04, 0x20, 0x03, 0x28, 0x09, 0x52, 0x10, 0x69, 0x67,
-	0x6e, 0x6f, 0x72, 0x65, 0x64, 0x52, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, 0x12, 0x38,
-	0x0a, 0x18, 0x66, 0x6f, 0x72, 0x63, 0x65, 0x64, 0x5f, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61,
-	0x63, 0x65, 0x5f, 0x61, 0x6c, 0x69, 0x61, 0x73, 0x65, 0x73, 0x18, 0x05, 0x20, 0x03, 0x28, 0x09,
-	0x52, 0x16, 0x66, 0x6f, 0x72, 0x63, 0x65, 0x64, 0x4e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63,
-	0x65, 0x41, 0x6c, 0x69, 0x61, 0x73, 0x65, 0x73, 0x12, 0x35, 0x0a, 0x16, 0x68, 0x61, 0x6e, 0x64,
-	0x77, 0x72, 0x69, 0x74, 0x74, 0x65, 0x6e, 0x5f, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72,
-	0x65, 0x73, 0x18, 0x06, 0x20, 0x03, 0x28, 0x09, 0x52, 0x15, 0x68, 0x61, 0x6e, 0x64, 0x77, 0x72,
-	0x69, 0x74, 0x74, 0x65, 0x6e, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x73, 0x1a,
-	0x42, 0x0a, 0x14, 0x52, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63,
-	0x65, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x01,
-	0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c,
-	0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a,
-	0x02, 0x38, 0x01, 0x1a, 0x43, 0x0a, 0x15, 0x52, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x64, 0x52, 0x65,
-	0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x73, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03,
-	0x6b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14,
-	0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76,
-	0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38, 0x01, 0x22, 0x4a, 0x0a, 0x0c, 0x52, 0x75, 0x62, 0x79,
-	0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x3a, 0x0a, 0x06, 0x63, 0x6f, 0x6d, 0x6d,
-	0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x22, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
-	0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x4c, 0x61, 0x6e, 0x67,
-	0x75, 0x61, 0x67, 0x65, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x52, 0x06, 0x63, 0x6f,
-	0x6d, 0x6d, 0x6f, 0x6e, 0x22, 0x48, 0x0a, 0x0a, 0x47, 0x6f, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e,
-	0x67, 0x73, 0x12, 0x3a, 0x0a, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01,
-	0x28, 0x0b, 0x32, 0x22, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e,
-	0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x4c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x53, 0x65,
-	0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x22, 0xc2,
-	0x03, 0x0a, 0x0e, 0x4d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67,
-	0x73, 0x12, 0x1a, 0x0a, 0x08, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x18, 0x01, 0x20,
-	0x01, 0x28, 0x09, 0x52, 0x08, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x12, 0x49, 0x0a,
-	0x0c, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x72, 0x75, 0x6e, 0x6e, 0x69, 0x6e, 0x67, 0x18, 0x02, 0x20,
-	0x01, 0x28, 0x0b, 0x32, 0x26, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69,
-	0x2e, 0x4d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x2e,
-	0x4c, 0x6f, 0x6e, 0x67, 0x52, 0x75, 0x6e, 0x6e, 0x69, 0x6e, 0x67, 0x52, 0x0b, 0x6c, 0x6f, 0x6e,
-	0x67, 0x52, 0x75, 0x6e, 0x6e, 0x69, 0x6e, 0x67, 0x12, 0x32, 0x0a, 0x15, 0x61, 0x75, 0x74, 0x6f,
-	0x5f, 0x70, 0x6f, 0x70, 0x75, 0x6c, 0x61, 0x74, 0x65, 0x64, 0x5f, 0x66, 0x69, 0x65, 0x6c, 0x64,
-	0x73, 0x18, 0x03, 0x20, 0x03, 0x28, 0x09, 0x52, 0x13, 0x61, 0x75, 0x74, 0x6f, 0x50, 0x6f, 0x70,
-	0x75, 0x6c, 0x61, 0x74, 0x65, 0x64, 0x46, 0x69, 0x65, 0x6c, 0x64, 0x73, 0x1a, 0x94, 0x02, 0x0a,
-	0x0b, 0x4c, 0x6f, 0x6e, 0x67, 0x52, 0x75, 0x6e, 0x6e, 0x69, 0x6e, 0x67, 0x12, 0x47, 0x0a, 0x12,
-	0x69, 0x6e, 0x69, 0x74, 0x69, 0x61, 0x6c, 0x5f, 0x70, 0x6f, 0x6c, 0x6c, 0x5f, 0x64, 0x65, 0x6c,
-	0x61, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
+	0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x22, 0x48, 0x0a, 0x0a, 0x47, 0x6f, 0x53, 0x65, 0x74, 0x74,
+	0x69, 0x6e, 0x67, 0x73, 0x12, 0x3a, 0x0a, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x18, 0x01,
+	0x20, 0x01, 0x28, 0x0b, 0x32, 0x22, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70,
+	0x69, 0x2e, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x4c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65,
+	0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x52, 0x06, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e,
+	0x22, 0xc2, 0x03, 0x0a, 0x0e, 0x4d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x53, 0x65, 0x74, 0x74, 0x69,
+	0x6e, 0x67, 0x73, 0x12, 0x1a, 0x0a, 0x08, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x18,
+	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x12,
+	0x49, 0x0a, 0x0c, 0x6c, 0x6f, 0x6e, 0x67, 0x5f, 0x72, 0x75, 0x6e, 0x6e, 0x69, 0x6e, 0x67, 0x18,
+	0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x26, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61,
+	0x70, 0x69, 0x2e, 0x4d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67,
+	0x73, 0x2e, 0x4c, 0x6f, 0x6e, 0x67, 0x52, 0x75, 0x6e, 0x6e, 0x69, 0x6e, 0x67, 0x52, 0x0b, 0x6c,
+	0x6f, 0x6e, 0x67, 0x52, 0x75, 0x6e, 0x6e, 0x69, 0x6e, 0x67, 0x12, 0x32, 0x0a, 0x15, 0x61, 0x75,
+	0x74, 0x6f, 0x5f, 0x70, 0x6f, 0x70, 0x75, 0x6c, 0x61, 0x74, 0x65, 0x64, 0x5f, 0x66, 0x69, 0x65,
+	0x6c, 0x64, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28, 0x09, 0x52, 0x13, 0x61, 0x75, 0x74, 0x6f, 0x50,
+	0x6f, 0x70, 0x75, 0x6c, 0x61, 0x74, 0x65, 0x64, 0x46, 0x69, 0x65, 0x6c, 0x64, 0x73, 0x1a, 0x94,
+	0x02, 0x0a, 0x0b, 0x4c, 0x6f, 0x6e, 0x67, 0x52, 0x75, 0x6e, 0x6e, 0x69, 0x6e, 0x67, 0x12, 0x47,
+	0x0a, 0x12, 0x69, 0x6e, 0x69, 0x74, 0x69, 0x61, 0x6c, 0x5f, 0x70, 0x6f, 0x6c, 0x6c, 0x5f, 0x64,
+	0x65, 0x6c, 0x61, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x67, 0x6f, 0x6f,
+	0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x44, 0x75, 0x72,
+	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x10, 0x69, 0x6e, 0x69, 0x74, 0x69, 0x61, 0x6c, 0x50, 0x6f,
+	0x6c, 0x6c, 0x44, 0x65, 0x6c, 0x61, 0x79, 0x12, 0x32, 0x0a, 0x15, 0x70, 0x6f, 0x6c, 0x6c, 0x5f,
+	0x64, 0x65, 0x6c, 0x61, 0x79, 0x5f, 0x6d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x69, 0x65, 0x72,
+	0x18, 0x02, 0x20, 0x01, 0x28, 0x02, 0x52, 0x13, 0x70, 0x6f, 0x6c, 0x6c, 0x44, 0x65, 0x6c, 0x61,
+	0x79, 0x4d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x69, 0x65, 0x72, 0x12, 0x3f, 0x0a, 0x0e, 0x6d,
+	0x61, 0x78, 0x5f, 0x70, 0x6f, 0x6c, 0x6c, 0x5f, 0x64, 0x65, 0x6c, 0x61, 0x79, 0x18, 0x03, 0x20,
+	0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x44, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x0c,
+	0x6d, 0x61, 0x78, 0x50, 0x6f, 0x6c, 0x6c, 0x44, 0x65, 0x6c, 0x61, 0x79, 0x12, 0x47, 0x0a, 0x12,
+	0x74, 0x6f, 0x74, 0x61, 0x6c, 0x5f, 0x70, 0x6f, 0x6c, 0x6c, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x6f,
+	0x75, 0x74, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
 	0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x44, 0x75, 0x72, 0x61, 0x74,
-	0x69, 0x6f, 0x6e, 0x52, 0x10, 0x69, 0x6e, 0x69, 0x74, 0x69, 0x61, 0x6c, 0x50, 0x6f, 0x6c, 0x6c,
-	0x44, 0x65, 0x6c, 0x61, 0x79, 0x12, 0x32, 0x0a, 0x15, 0x70, 0x6f, 0x6c, 0x6c, 0x5f, 0x64, 0x65,
-	0x6c, 0x61, 0x79, 0x5f, 0x6d, 0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x69, 0x65, 0x72, 0x18, 0x02,
-	0x20, 0x01, 0x28, 0x02, 0x52, 0x13, 0x70, 0x6f, 0x6c, 0x6c, 0x44, 0x65, 0x6c, 0x61, 0x79, 0x4d,
-	0x75, 0x6c, 0x74, 0x69, 0x70, 0x6c, 0x69, 0x65, 0x72, 0x12, 0x3f, 0x0a, 0x0e, 0x6d, 0x61, 0x78,
-	0x5f, 0x70, 0x6f, 0x6c, 0x6c, 0x5f, 0x64, 0x65, 0x6c, 0x61, 0x79, 0x18, 0x03, 0x20, 0x01, 0x28,
-	0x0b, 0x32, 0x19, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x62, 0x75, 0x66, 0x2e, 0x44, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x0c, 0x6d, 0x61,
-	0x78, 0x50, 0x6f, 0x6c, 0x6c, 0x44, 0x65, 0x6c, 0x61, 0x79, 0x12, 0x47, 0x0a, 0x12, 0x74, 0x6f,
-	0x74, 0x61, 0x6c, 0x5f, 0x70, 0x6f, 0x6c, 0x6c, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74,
-	0x18, 0x04, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e,
-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x44, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f,
-	0x6e, 0x52, 0x10, 0x74, 0x6f, 0x74, 0x61, 0x6c, 0x50, 0x6f, 0x6c, 0x6c, 0x54, 0x69, 0x6d, 0x65,
-	0x6f, 0x75, 0x74, 0x2a, 0xa3, 0x01, 0x0a, 0x19, 0x43, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x4c, 0x69,
-	0x62, 0x72, 0x61, 0x72, 0x79, 0x4f, 0x72, 0x67, 0x61, 0x6e, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f,
-	0x6e, 0x12, 0x2b, 0x0a, 0x27, 0x43, 0x4c, 0x49, 0x45, 0x4e, 0x54, 0x5f, 0x4c, 0x49, 0x42, 0x52,
-	0x41, 0x52, 0x59, 0x5f, 0x4f, 0x52, 0x47, 0x41, 0x4e, 0x49, 0x5a, 0x41, 0x54, 0x49, 0x4f, 0x4e,
-	0x5f, 0x55, 0x4e, 0x53, 0x50, 0x45, 0x43, 0x49, 0x46, 0x49, 0x45, 0x44, 0x10, 0x00, 0x12, 0x09,
-	0x0a, 0x05, 0x43, 0x4c, 0x4f, 0x55, 0x44, 0x10, 0x01, 0x12, 0x07, 0x0a, 0x03, 0x41, 0x44, 0x53,
-	0x10, 0x02, 0x12, 0x0a, 0x0a, 0x06, 0x50, 0x48, 0x4f, 0x54, 0x4f, 0x53, 0x10, 0x03, 0x12, 0x0f,
-	0x0a, 0x0b, 0x53, 0x54, 0x52, 0x45, 0x45, 0x54, 0x5f, 0x56, 0x49, 0x45, 0x57, 0x10, 0x04, 0x12,
-	0x0c, 0x0a, 0x08, 0x53, 0x48, 0x4f, 0x50, 0x50, 0x49, 0x4e, 0x47, 0x10, 0x05, 0x12, 0x07, 0x0a,
-	0x03, 0x47, 0x45, 0x4f, 0x10, 0x06, 0x12, 0x11, 0x0a, 0x0d, 0x47, 0x45, 0x4e, 0x45, 0x52, 0x41,
-	0x54, 0x49, 0x56, 0x45, 0x5f, 0x41, 0x49, 0x10, 0x07, 0x2a, 0x67, 0x0a, 0x18, 0x43, 0x6c, 0x69,
-	0x65, 0x6e, 0x74, 0x4c, 0x69, 0x62, 0x72, 0x61, 0x72, 0x79, 0x44, 0x65, 0x73, 0x74, 0x69, 0x6e,
-	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x2a, 0x0a, 0x26, 0x43, 0x4c, 0x49, 0x45, 0x4e, 0x54, 0x5f,
-	0x4c, 0x49, 0x42, 0x52, 0x41, 0x52, 0x59, 0x5f, 0x44, 0x45, 0x53, 0x54, 0x49, 0x4e, 0x41, 0x54,
-	0x49, 0x4f, 0x4e, 0x5f, 0x55, 0x4e, 0x53, 0x50, 0x45, 0x43, 0x49, 0x46, 0x49, 0x45, 0x44, 0x10,
-	0x00, 0x12, 0x0a, 0x0a, 0x06, 0x47, 0x49, 0x54, 0x48, 0x55, 0x42, 0x10, 0x0a, 0x12, 0x13, 0x0a,
-	0x0f, 0x50, 0x41, 0x43, 0x4b, 0x41, 0x47, 0x45, 0x5f, 0x4d, 0x41, 0x4e, 0x41, 0x47, 0x45, 0x52,
-	0x10, 0x14, 0x3a, 0x4a, 0x0a, 0x10, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x5f, 0x73, 0x69, 0x67,
-	0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x12, 0x1e, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e,
-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x4d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x4f,
-	0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0x9b, 0x08, 0x20, 0x03, 0x28, 0x09, 0x52, 0x0f, 0x6d,
-	0x65, 0x74, 0x68, 0x6f, 0x64, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x3a, 0x43,
-	0x0a, 0x0c, 0x64, 0x65, 0x66, 0x61, 0x75, 0x6c, 0x74, 0x5f, 0x68, 0x6f, 0x73, 0x74, 0x12, 0x1f,
-	0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66,
-	0x2e, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18,
-	0x99, 0x08, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x64, 0x65, 0x66, 0x61, 0x75, 0x6c, 0x74, 0x48,
-	0x6f, 0x73, 0x74, 0x3a, 0x43, 0x0a, 0x0c, 0x6f, 0x61, 0x75, 0x74, 0x68, 0x5f, 0x73, 0x63, 0x6f,
-	0x70, 0x65, 0x73, 0x12, 0x1f, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f,
-	0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x4f, 0x70, 0x74,
-	0x69, 0x6f, 0x6e, 0x73, 0x18, 0x9a, 0x08, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x6f, 0x61, 0x75,
-	0x74, 0x68, 0x53, 0x63, 0x6f, 0x70, 0x65, 0x73, 0x3a, 0x44, 0x0a, 0x0b, 0x61, 0x70, 0x69, 0x5f,
-	0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x1f, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65,
-	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63,
-	0x65, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0xc1, 0xba, 0xab, 0xfa, 0x01, 0x20, 0x01,
-	0x28, 0x09, 0x52, 0x0a, 0x61, 0x70, 0x69, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x42, 0x69,
-	0x0a, 0x0e, 0x63, 0x6f, 0x6d, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69,
-	0x42, 0x0b, 0x43, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a,
-	0x41, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2e, 0x6f,
-	0x72, 0x67, 0x2f, 0x67, 0x65, 0x6e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x67, 0x6f, 0x6f, 0x67,
-	0x6c, 0x65, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x61, 0x6e, 0x6e, 0x6f, 0x74,
-	0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x3b, 0x61, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f,
-	0x6e, 0x73, 0xa2, 0x02, 0x04, 0x47, 0x41, 0x50, 0x49, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x33,
+	0x69, 0x6f, 0x6e, 0x52, 0x10, 0x74, 0x6f, 0x74, 0x61, 0x6c, 0x50, 0x6f, 0x6c, 0x6c, 0x54, 0x69,
+	0x6d, 0x65, 0x6f, 0x75, 0x74, 0x2a, 0xa3, 0x01, 0x0a, 0x19, 0x43, 0x6c, 0x69, 0x65, 0x6e, 0x74,
+	0x4c, 0x69, 0x62, 0x72, 0x61, 0x72, 0x79, 0x4f, 0x72, 0x67, 0x61, 0x6e, 0x69, 0x7a, 0x61, 0x74,
+	0x69, 0x6f, 0x6e, 0x12, 0x2b, 0x0a, 0x27, 0x43, 0x4c, 0x49, 0x45, 0x4e, 0x54, 0x5f, 0x4c, 0x49,
+	0x42, 0x52, 0x41, 0x52, 0x59, 0x5f, 0x4f, 0x52, 0x47, 0x41, 0x4e, 0x49, 0x5a, 0x41, 0x54, 0x49,
+	0x4f, 0x4e, 0x5f, 0x55, 0x4e, 0x53, 0x50, 0x45, 0x43, 0x49, 0x46, 0x49, 0x45, 0x44, 0x10, 0x00,
+	0x12, 0x09, 0x0a, 0x05, 0x43, 0x4c, 0x4f, 0x55, 0x44, 0x10, 0x01, 0x12, 0x07, 0x0a, 0x03, 0x41,
+	0x44, 0x53, 0x10, 0x02, 0x12, 0x0a, 0x0a, 0x06, 0x50, 0x48, 0x4f, 0x54, 0x4f, 0x53, 0x10, 0x03,
+	0x12, 0x0f, 0x0a, 0x0b, 0x53, 0x54, 0x52, 0x45, 0x45, 0x54, 0x5f, 0x56, 0x49, 0x45, 0x57, 0x10,
+	0x04, 0x12, 0x0c, 0x0a, 0x08, 0x53, 0x48, 0x4f, 0x50, 0x50, 0x49, 0x4e, 0x47, 0x10, 0x05, 0x12,
+	0x07, 0x0a, 0x03, 0x47, 0x45, 0x4f, 0x10, 0x06, 0x12, 0x11, 0x0a, 0x0d, 0x47, 0x45, 0x4e, 0x45,
+	0x52, 0x41, 0x54, 0x49, 0x56, 0x45, 0x5f, 0x41, 0x49, 0x10, 0x07, 0x2a, 0x67, 0x0a, 0x18, 0x43,
+	0x6c, 0x69, 0x65, 0x6e, 0x74, 0x4c, 0x69, 0x62, 0x72, 0x61, 0x72, 0x79, 0x44, 0x65, 0x73, 0x74,
+	0x69, 0x6e, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x2a, 0x0a, 0x26, 0x43, 0x4c, 0x49, 0x45, 0x4e,
+	0x54, 0x5f, 0x4c, 0x49, 0x42, 0x52, 0x41, 0x52, 0x59, 0x5f, 0x44, 0x45, 0x53, 0x54, 0x49, 0x4e,
+	0x41, 0x54, 0x49, 0x4f, 0x4e, 0x5f, 0x55, 0x4e, 0x53, 0x50, 0x45, 0x43, 0x49, 0x46, 0x49, 0x45,
+	0x44, 0x10, 0x00, 0x12, 0x0a, 0x0a, 0x06, 0x47, 0x49, 0x54, 0x48, 0x55, 0x42, 0x10, 0x0a, 0x12,
+	0x13, 0x0a, 0x0f, 0x50, 0x41, 0x43, 0x4b, 0x41, 0x47, 0x45, 0x5f, 0x4d, 0x41, 0x4e, 0x41, 0x47,
+	0x45, 0x52, 0x10, 0x14, 0x3a, 0x4a, 0x0a, 0x10, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x5f, 0x73,
+	0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x12, 0x1e, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
+	0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x4d, 0x65, 0x74, 0x68, 0x6f,
+	0x64, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0x9b, 0x08, 0x20, 0x03, 0x28, 0x09, 0x52,
+	0x0f, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, 0x53, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65,
+	0x3a, 0x43, 0x0a, 0x0c, 0x64, 0x65, 0x66, 0x61, 0x75, 0x6c, 0x74, 0x5f, 0x68, 0x6f, 0x73, 0x74,
+	0x12, 0x1f, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62,
+	0x75, 0x66, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e,
+	0x73, 0x18, 0x99, 0x08, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x64, 0x65, 0x66, 0x61, 0x75, 0x6c,
+	0x74, 0x48, 0x6f, 0x73, 0x74, 0x3a, 0x43, 0x0a, 0x0c, 0x6f, 0x61, 0x75, 0x74, 0x68, 0x5f, 0x73,
+	0x63, 0x6f, 0x70, 0x65, 0x73, 0x12, 0x1f, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x4f,
+	0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0x9a, 0x08, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0b, 0x6f,
+	0x61, 0x75, 0x74, 0x68, 0x53, 0x63, 0x6f, 0x70, 0x65, 0x73, 0x3a, 0x44, 0x0a, 0x0b, 0x61, 0x70,
+	0x69, 0x5f, 0x76, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x12, 0x1f, 0x2e, 0x67, 0x6f, 0x6f, 0x67,
+	0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x53, 0x65, 0x72, 0x76,
+	0x69, 0x63, 0x65, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0xc1, 0xba, 0xab, 0xfa, 0x01,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x61, 0x70, 0x69, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e,
+	0x42, 0x69, 0x0a, 0x0e, 0x63, 0x6f, 0x6d, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61,
+	0x70, 0x69, 0x42, 0x0b, 0x43, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50,
+	0x01, 0x5a, 0x41, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67,
+	0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x67, 0x65, 0x6e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x67, 0x6f,
+	0x6f, 0x67, 0x6c, 0x65, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x61, 0x6e, 0x6e,
+	0x6f, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x3b, 0x61, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x74,
+	0x69, 0x6f, 0x6e, 0x73, 0xa2, 0x02, 0x04, 0x47, 0x41, 0x50, 0x49, 0x62, 0x06, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1601,34 +1675,35 @@ func file_google_api_client_proto_rawDescGZIP() []byte {
 }
 
 var file_google_api_client_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
-var file_google_api_client_proto_msgTypes = make([]protoimpl.MessageInfo, 16)
+var file_google_api_client_proto_msgTypes = make([]protoimpl.MessageInfo, 17)
 var file_google_api_client_proto_goTypes = []interface{}{
-	(ClientLibraryOrganization)(0),      // 0: google.api.ClientLibraryOrganization
-	(ClientLibraryDestination)(0),       // 1: google.api.ClientLibraryDestination
-	(*CommonLanguageSettings)(nil),      // 2: google.api.CommonLanguageSettings
-	(*ClientLibrarySettings)(nil),       // 3: google.api.ClientLibrarySettings
-	(*Publishing)(nil),                  // 4: google.api.Publishing
-	(*JavaSettings)(nil),                // 5: google.api.JavaSettings
-	(*CppSettings)(nil),                 // 6: google.api.CppSettings
-	(*PhpSettings)(nil),                 // 7: google.api.PhpSettings
-	(*PythonSettings)(nil),              // 8: google.api.PythonSettings
-	(*NodeSettings)(nil),                // 9: google.api.NodeSettings
-	(*DotnetSettings)(nil),              // 10: google.api.DotnetSettings
-	(*RubySettings)(nil),                // 11: google.api.RubySettings
-	(*GoSettings)(nil),                  // 12: google.api.GoSettings
-	(*MethodSettings)(nil),              // 13: google.api.MethodSettings
-	nil,                                 // 14: google.api.JavaSettings.ServiceClassNamesEntry
-	nil,                                 // 15: google.api.DotnetSettings.RenamedServicesEntry
-	nil,                                 // 16: google.api.DotnetSettings.RenamedResourcesEntry
-	(*MethodSettings_LongRunning)(nil),  // 17: google.api.MethodSettings.LongRunning
-	(api.LaunchStage)(0),                // 18: google.api.LaunchStage
-	(*durationpb.Duration)(nil),         // 19: google.protobuf.Duration
-	(*descriptorpb.MethodOptions)(nil),  // 20: google.protobuf.MethodOptions
-	(*descriptorpb.ServiceOptions)(nil), // 21: google.protobuf.ServiceOptions
+	(ClientLibraryOrganization)(0),              // 0: google.api.ClientLibraryOrganization
+	(ClientLibraryDestination)(0),               // 1: google.api.ClientLibraryDestination
+	(*CommonLanguageSettings)(nil),              // 2: google.api.CommonLanguageSettings
+	(*ClientLibrarySettings)(nil),               // 3: google.api.ClientLibrarySettings
+	(*Publishing)(nil),                          // 4: google.api.Publishing
+	(*JavaSettings)(nil),                        // 5: google.api.JavaSettings
+	(*CppSettings)(nil),                         // 6: google.api.CppSettings
+	(*PhpSettings)(nil),                         // 7: google.api.PhpSettings
+	(*PythonSettings)(nil),                      // 8: google.api.PythonSettings
+	(*NodeSettings)(nil),                        // 9: google.api.NodeSettings
+	(*DotnetSettings)(nil),                      // 10: google.api.DotnetSettings
+	(*RubySettings)(nil),                        // 11: google.api.RubySettings
+	(*GoSettings)(nil),                          // 12: google.api.GoSettings
+	(*MethodSettings)(nil),                      // 13: google.api.MethodSettings
+	nil,                                         // 14: google.api.JavaSettings.ServiceClassNamesEntry
+	(*PythonSettings_ExperimentalFeatures)(nil), // 15: google.api.PythonSettings.ExperimentalFeatures
+	nil,                                 // 16: google.api.DotnetSettings.RenamedServicesEntry
+	nil,                                 // 17: google.api.DotnetSettings.RenamedResourcesEntry
+	(*MethodSettings_LongRunning)(nil),  // 18: google.api.MethodSettings.LongRunning
+	(api.LaunchStage)(0),                // 19: google.api.LaunchStage
+	(*durationpb.Duration)(nil),         // 20: google.protobuf.Duration
+	(*descriptorpb.MethodOptions)(nil),  // 21: google.protobuf.MethodOptions
+	(*descriptorpb.ServiceOptions)(nil), // 22: google.protobuf.ServiceOptions
 }
 var file_google_api_client_proto_depIdxs = []int32{
 	1,  // 0: google.api.CommonLanguageSettings.destinations:type_name -> google.api.ClientLibraryDestination
-	18, // 1: google.api.ClientLibrarySettings.launch_stage:type_name -> google.api.LaunchStage
+	19, // 1: google.api.ClientLibrarySettings.launch_stage:type_name -> google.api.LaunchStage
 	5,  // 2: google.api.ClientLibrarySettings.java_settings:type_name -> google.api.JavaSettings
 	6,  // 3: google.api.ClientLibrarySettings.cpp_settings:type_name -> google.api.CppSettings
 	7,  // 4: google.api.ClientLibrarySettings.php_settings:type_name -> google.api.PhpSettings
@@ -1645,25 +1720,26 @@ var file_google_api_client_proto_depIdxs = []int32{
 	2,  // 15: google.api.CppSettings.common:type_name -> google.api.CommonLanguageSettings
 	2,  // 16: google.api.PhpSettings.common:type_name -> google.api.CommonLanguageSettings
 	2,  // 17: google.api.PythonSettings.common:type_name -> google.api.CommonLanguageSettings
-	2,  // 18: google.api.NodeSettings.common:type_name -> google.api.CommonLanguageSettings
-	2,  // 19: google.api.DotnetSettings.common:type_name -> google.api.CommonLanguageSettings
-	15, // 20: google.api.DotnetSettings.renamed_services:type_name -> google.api.DotnetSettings.RenamedServicesEntry
-	16, // 21: google.api.DotnetSettings.renamed_resources:type_name -> google.api.DotnetSettings.RenamedResourcesEntry
-	2,  // 22: google.api.RubySettings.common:type_name -> google.api.CommonLanguageSettings
-	2,  // 23: google.api.GoSettings.common:type_name -> google.api.CommonLanguageSettings
-	17, // 24: google.api.MethodSettings.long_running:type_name -> google.api.MethodSettings.LongRunning
-	19, // 25: google.api.MethodSettings.LongRunning.initial_poll_delay:type_name -> google.protobuf.Duration
-	19, // 26: google.api.MethodSettings.LongRunning.max_poll_delay:type_name -> google.protobuf.Duration
-	19, // 27: google.api.MethodSettings.LongRunning.total_poll_timeout:type_name -> google.protobuf.Duration
-	20, // 28: google.api.method_signature:extendee -> google.protobuf.MethodOptions
-	21, // 29: google.api.default_host:extendee -> google.protobuf.ServiceOptions
-	21, // 30: google.api.oauth_scopes:extendee -> google.protobuf.ServiceOptions
-	21, // 31: google.api.api_version:extendee -> google.protobuf.ServiceOptions
-	32, // [32:32] is the sub-list for method output_type
-	32, // [32:32] is the sub-list for method input_type
-	32, // [32:32] is the sub-list for extension type_name
-	28, // [28:32] is the sub-list for extension extendee
-	0,  // [0:28] is the sub-list for field type_name
+	15, // 18: google.api.PythonSettings.experimental_features:type_name -> google.api.PythonSettings.ExperimentalFeatures
+	2,  // 19: google.api.NodeSettings.common:type_name -> google.api.CommonLanguageSettings
+	2,  // 20: google.api.DotnetSettings.common:type_name -> google.api.CommonLanguageSettings
+	16, // 21: google.api.DotnetSettings.renamed_services:type_name -> google.api.DotnetSettings.RenamedServicesEntry
+	17, // 22: google.api.DotnetSettings.renamed_resources:type_name -> google.api.DotnetSettings.RenamedResourcesEntry
+	2,  // 23: google.api.RubySettings.common:type_name -> google.api.CommonLanguageSettings
+	2,  // 24: google.api.GoSettings.common:type_name -> google.api.CommonLanguageSettings
+	18, // 25: google.api.MethodSettings.long_running:type_name -> google.api.MethodSettings.LongRunning
+	20, // 26: google.api.MethodSettings.LongRunning.initial_poll_delay:type_name -> google.protobuf.Duration
+	20, // 27: google.api.MethodSettings.LongRunning.max_poll_delay:type_name -> google.protobuf.Duration
+	20, // 28: google.api.MethodSettings.LongRunning.total_poll_timeout:type_name -> google.protobuf.Duration
+	21, // 29: google.api.method_signature:extendee -> google.protobuf.MethodOptions
+	22, // 30: google.api.default_host:extendee -> google.protobuf.ServiceOptions
+	22, // 31: google.api.oauth_scopes:extendee -> google.protobuf.ServiceOptions
+	22, // 32: google.api.api_version:extendee -> google.protobuf.ServiceOptions
+	33, // [33:33] is the sub-list for method output_type
+	33, // [33:33] is the sub-list for method input_type
+	33, // [33:33] is the sub-list for extension type_name
+	29, // [29:33] is the sub-list for extension extendee
+	0,  // [0:29] is the sub-list for field type_name
 }
 
 func init() { file_google_api_client_proto_init() }
@@ -1816,7 +1892,19 @@ func file_google_api_client_proto_init() {
 				return nil
 			}
 		}
-		file_google_api_client_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
+		file_google_api_client_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PythonSettings_ExperimentalFeatures); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_google_api_client_proto_msgTypes[16].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*MethodSettings_LongRunning); i {
 			case 0:
 				return &v.state
@@ -1835,7 +1923,7 @@ func file_google_api_client_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_google_api_client_proto_rawDesc,
 			NumEnums:      2,
-			NumMessages:   16,
+			NumMessages:   17,
 			NumExtensions: 4,
 			NumServices:   0,
 		},
diff --git a/regen.txt b/regen.txt
index fa8310f19..98ed45de2 100644
--- a/regen.txt
+++ b/regen.txt
@@ -1 +1 @@
-7601a10765132fd9a5cef5fe1a102e33acf942b8
\ No newline at end of file
+dfb718a4aeb288b4153b8e2af9264627f973a72b
\ No newline at end of file