diff --git a/internal/testing/sample/sample.go b/internal/testing/sample/sample.go
index 0213e941..5732a7d7 100644
--- a/internal/testing/sample/sample.go
+++ b/internal/testing/sample/sample.go
@@ -19,10 +19,8 @@ package sample
 import (
 	"fmt"
 
-	"google.golang.org/genproto/googleapis/api/serviceconfig"
 	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/types/descriptorpb"
-	"google.golang.org/protobuf/types/known/apipb"
 )
 
 const (
@@ -103,6 +101,13 @@ const (
 	// https://pkg.go.dev/cloud.google.com/go/secretmanager/apiv1/secretmanagerpb#Secret
 	// https://github.com/googleapis/googleapis/blob/f7df662a24c56ecaab79cb7d808fed4d2bb4981d/google/cloud/secretmanager/v1/resources.proto#L40
 	Resource = "Secret"
+
+	// CreateMethodWithSettings is a fake method for the purpose of testing
+	// the method_settings functionality in the publishing YAML.
+	//
+	// The actual secretmanager publishing does not use this field:
+	// https://github.com/googleapis/googleapis/blob/f7df662a24c56ecaab79cb7d808fed4d2bb4981d/google/cloud/secretmanager/v1/secretmanager_v1.yaml#L44
+	CreateMethodWithSettings = "CreateSecretWithMethodSettings"
 )
 
 const (
@@ -172,20 +177,6 @@ func DescriptorInfoTypeName(typ string) string {
 	return fmt.Sprintf(".%s.%s", ProtoPackagePath, typ)
 }
 
-// ServiceConfig returns service config information.
-func ServiceConfig() *serviceconfig.Service {
-	return &serviceconfig.Service{
-		Apis: []*apipb.Api{
-			{
-				Name: fmt.Sprintf("%s.%s", ProtoPackagePath, ServiceName),
-			},
-		},
-		Documentation: &serviceconfig.Documentation{
-			Summary: ServiceDocumentationSummary,
-		},
-	}
-}
-
 // Service returns a service descriptor using the sample values.
 func Service() *descriptorpb.ServiceDescriptorProto {
 	return &descriptorpb.ServiceDescriptorProto{
diff --git a/internal/testing/sample/serviceconfig.go b/internal/testing/sample/serviceconfig.go
new file mode 100644
index 00000000..b5ba3840
--- /dev/null
+++ b/internal/testing/sample/serviceconfig.go
@@ -0,0 +1,126 @@
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package sample provides functionality for generating sample values of
+// the types contained in the internal package for testing purposes.
+package sample
+
+import (
+	"fmt"
+
+	"google.golang.org/genproto/googleapis/api"
+	"google.golang.org/genproto/googleapis/api/annotations"
+	"google.golang.org/genproto/googleapis/api/serviceconfig"
+	"google.golang.org/protobuf/types/known/apipb"
+)
+
+func ServiceConfig() *serviceconfig.Service {
+	return &serviceconfig.Service{
+		Name:  ServiceURL,
+		Title: ServiceTitle,
+		Apis: []*apipb.Api{
+			{
+				Name: "google.cloud.location.Locations",
+			},
+			{
+				Name: fmt.Sprintf("%s.%s", ProtoPackagePath, ServiceName),
+			},
+		},
+		Documentation: &serviceconfig.Documentation{
+			Summary:  "Stores sensitive data such as API keys, passwords, and certificates. Provides convenience while improving security.",
+			Overview: "Secret Manager Overview",
+			Rules: []*serviceconfig.DocumentationRule{
+				{
+					Selector:    "google.cloud.location.Locations.GetLocation",
+					Description: "Gets information about a location.",
+				},
+				{
+					Selector:    "google.cloud.location.Locations.ListLocations",
+					Description: "Lists information about the supported locations for this service.",
+				},
+			},
+		},
+		Http: &annotations.Http{
+			Rules: []*annotations.HttpRule{
+				{
+					Selector: "google.cloud.location.Locations.GetLocation",
+					Pattern: &annotations.HttpRule_Get{
+						Get: "/v1/{name=projects/*/locations/*}",
+					},
+				},
+				{
+					Selector: "google.cloud.location.Locations.ListLocation",
+					Pattern: &annotations.HttpRule_Get{
+						Get: "/v1/{name=projects/*}/locations",
+					},
+				},
+			},
+		},
+		Authentication: &serviceconfig.Authentication{
+			Rules: []*serviceconfig.AuthenticationRule{
+				{
+					Selector: "google.cloud.location.Locations.GetLocation",
+					Oauth: &serviceconfig.OAuthRequirements{
+						CanonicalScopes: ServiceOAuthScope,
+					},
+				},
+				{
+					Selector: "google.cloud.location.Locations.ListLocations",
+					Oauth: &serviceconfig.OAuthRequirements{
+						CanonicalScopes: ServiceOAuthScope,
+					},
+				},
+				{
+					Selector: "'google.cloud.secretmanager.v1.SecretManagerService.*'",
+					Oauth: &serviceconfig.OAuthRequirements{
+						CanonicalScopes: ServiceOAuthScope,
+					},
+				},
+			},
+		},
+		Publishing: &annotations.Publishing{
+			NewIssueUri:      "https://issuetracker.google.com/issues/new?component=784854&template=1380926",
+			DocumentationUri: "https://cloud.google.com/secret-manager/docs/overview",
+			ApiShortName:     "secretmanager",
+			GithubLabel:      "'api: secretmanager'",
+			DocTagPrefix:     "secretmanager",
+			Organization:     annotations.ClientLibraryOrganization_CLOUD,
+			LibrarySettings: []*annotations.ClientLibrarySettings{
+				{
+					Version:     "google.cloud.secretmanager.v1",
+					LaunchStage: api.LaunchStage_GA,
+					GoSettings: &annotations.GoSettings{
+						Common: &annotations.CommonLanguageSettings{
+							Destinations: []annotations.ClientLibraryDestination{
+								annotations.ClientLibraryDestination_PACKAGE_MANAGER,
+							},
+						},
+					},
+				},
+			},
+			ProtoReferenceDocumentationUri: "https://cloud.google.com/secret-manager/docs/reference/rpc",
+
+			// The data below is fake. method_settings is not used in
+			// https://github.com/googleapis/googleapis/blob/f7df662a24c56ecaab79cb7d808fed4d2bb4981d/google/cloud/secretmanager/v1/secretmanager_v1.yaml.
+			MethodSettings: []*annotations.MethodSettings{
+				{
+					Selector: fmt.Sprintf("%s.%s.%s", ProtoPackagePath, ServiceName, CreateMethodWithSettings),
+					AutoPopulatedFields: []string{
+						"request_id",
+					},
+				},
+			},
+		},
+	}
+}