diff --git a/google-cloud-clients/google-cloud-os-login/src/main/java/com/google/cloud/oslogin/v1/stub/GrpcOsLoginServiceStub.java b/google-cloud-clients/google-cloud-os-login/src/main/java/com/google/cloud/oslogin/v1/stub/GrpcOsLoginServiceStub.java
index 5786fcab9913..aacd559ba3a6 100644
--- a/google-cloud-clients/google-cloud-os-login/src/main/java/com/google/cloud/oslogin/v1/stub/GrpcOsLoginServiceStub.java
+++ b/google-cloud-clients/google-cloud-os-login/src/main/java/com/google/cloud/oslogin/v1/stub/GrpcOsLoginServiceStub.java
@@ -21,6 +21,7 @@
 import com.google.api.gax.grpc.GrpcCallSettings;
 import com.google.api.gax.grpc.GrpcStubCallableFactory;
 import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.RequestParamsExtractor;
 import com.google.api.gax.rpc.UnaryCallable;
 import com.google.cloud.oslogin.common.OsLoginProto.SshPublicKey;
 import com.google.cloud.oslogin.v1.DeletePosixAccountRequest;
@@ -31,10 +32,12 @@
 import com.google.cloud.oslogin.v1.ImportSshPublicKeyResponse;
 import com.google.cloud.oslogin.v1.LoginProfile;
 import com.google.cloud.oslogin.v1.UpdateSshPublicKeyRequest;
+import com.google.common.collect.ImmutableMap;
 import com.google.protobuf.Empty;
 import io.grpc.MethodDescriptor;
 import io.grpc.protobuf.ProtoUtils;
 import java.io.IOException;
+import java.util.Map;
 import java.util.concurrent.TimeUnit;
 import javax.annotation.Generated;
 
@@ -158,27 +161,81 @@ protected GrpcOsLoginServiceStub(
     GrpcCallSettings<DeletePosixAccountRequest, Empty> deletePosixAccountTransportSettings =
         GrpcCallSettings.<DeletePosixAccountRequest, Empty>newBuilder()
             .setMethodDescriptor(deletePosixAccountMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeletePosixAccountRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeletePosixAccountRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
             .build();
     GrpcCallSettings<DeleteSshPublicKeyRequest, Empty> deleteSshPublicKeyTransportSettings =
         GrpcCallSettings.<DeleteSshPublicKeyRequest, Empty>newBuilder()
             .setMethodDescriptor(deleteSshPublicKeyMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<DeleteSshPublicKeyRequest>() {
+                  @Override
+                  public Map<String, String> extract(DeleteSshPublicKeyRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
             .build();
     GrpcCallSettings<GetLoginProfileRequest, LoginProfile> getLoginProfileTransportSettings =
         GrpcCallSettings.<GetLoginProfileRequest, LoginProfile>newBuilder()
             .setMethodDescriptor(getLoginProfileMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetLoginProfileRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetLoginProfileRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
             .build();
     GrpcCallSettings<GetSshPublicKeyRequest, SshPublicKey> getSshPublicKeyTransportSettings =
         GrpcCallSettings.<GetSshPublicKeyRequest, SshPublicKey>newBuilder()
             .setMethodDescriptor(getSshPublicKeyMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<GetSshPublicKeyRequest>() {
+                  @Override
+                  public Map<String, String> extract(GetSshPublicKeyRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
             .build();
     GrpcCallSettings<ImportSshPublicKeyRequest, ImportSshPublicKeyResponse>
         importSshPublicKeyTransportSettings =
             GrpcCallSettings.<ImportSshPublicKeyRequest, ImportSshPublicKeyResponse>newBuilder()
                 .setMethodDescriptor(importSshPublicKeyMethodDescriptor)
+                .setParamsExtractor(
+                    new RequestParamsExtractor<ImportSshPublicKeyRequest>() {
+                      @Override
+                      public Map<String, String> extract(ImportSshPublicKeyRequest request) {
+                        ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                        params.put("parent", String.valueOf(request.getParent()));
+                        return params.build();
+                      }
+                    })
                 .build();
     GrpcCallSettings<UpdateSshPublicKeyRequest, SshPublicKey> updateSshPublicKeyTransportSettings =
         GrpcCallSettings.<UpdateSshPublicKeyRequest, SshPublicKey>newBuilder()
             .setMethodDescriptor(updateSshPublicKeyMethodDescriptor)
+            .setParamsExtractor(
+                new RequestParamsExtractor<UpdateSshPublicKeyRequest>() {
+                  @Override
+                  public Map<String, String> extract(UpdateSshPublicKeyRequest request) {
+                    ImmutableMap.Builder<String, String> params = ImmutableMap.builder();
+                    params.put("name", String.valueOf(request.getName()));
+                    return params.build();
+                  }
+                })
             .build();
 
     this.deletePosixAccountCallable =
diff --git a/google-cloud-clients/google-cloud-os-login/synth.metadata b/google-cloud-clients/google-cloud-os-login/synth.metadata
index c3771c843c06..c3ec97c890b4 100644
--- a/google-cloud-clients/google-cloud-os-login/synth.metadata
+++ b/google-cloud-clients/google-cloud-os-login/synth.metadata
@@ -1,19 +1,19 @@
 {
-  "updateTime": "2019-03-01T08:48:43.656993Z",
+  "updateTime": "2019-03-28T07:50:32.379579Z",
   "sources": [
     {
       "generator": {
         "name": "artman",
-        "version": "0.16.14",
-        "dockerImage": "googleapis/artman@sha256:f3d61ae45abaeefb6be5f228cda22732c2f1b00fb687c79c4bd4f2c42bb1e1a7"
+        "version": "0.16.20",
+        "dockerImage": "googleapis/artman@sha256:e3c054a2fb85a12481c722af616c7fb6f1d02d862248385eecbec3e4240ebd1e"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "41d72d444fbe445f4da89e13be02078734fb7875",
-        "internalRef": "236230004"
+        "sha": "6a84b3267b0a95e922608b9891219075047eee29",
+        "internalRef": "240640999"
       }
     }
   ],