code: public com.google.cloud.datalabeling.v1beta1.LabelAudioTranscriptionOperationMetadata
        getAudioTranscriptionDetails() {
      if (detailsCase_ == 10) {
        return (com.google.cloud.datalabeling.v1beta1.LabelAudioTranscriptionOperationMetadata)
            details_;
      }
      return com.google.cloud.datalabeling.v1beta1.LabelAudioTranscriptionOperationMetadata
          .getDefaultInstance();
    }
docs: <code>
  .google.cloud.datalabeling.v1beta1.LabelAudioTranscriptionOperationMetadata audio_transcription_details = 10;
  </code>