@java.lang.Override
    @java.lang.SuppressWarnings("unchecked")
    public io.grpc.stub.StreamObserver<Req> invoke(
        io.grpc.stub.StreamObserver<Resp> responseObserver) {
      switch (methodId) {
        case METHODID_STREAMING_RECOGNIZE:
          return (io.grpc.stub.StreamObserver<Req>)
              serviceImpl.streamingRecognize(
                  (io.grpc.stub.StreamObserver<
                          com.google.cloud.speech.v2.StreamingRecognizeResponse>)
                      responseObserver);
        default:
          throw new AssertionError();
      }
    }
<pre>
Undeletes the [PhraseSet][google.cloud.speech.v2.PhraseSet].
</pre>
java-speech/grpc-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/SpeechGrpc.java