@java.lang.Override
    public com.google.cloud.translate.v3.GcsInputSourceOrBuilder getGcsSourceOrBuilder() {
      if (sourceCase_ == 3) {
        return (com.google.cloud.translate.v3.GcsInputSource) source_;
      }
      return com.google.cloud.translate.v3.GcsInputSource.getDefaultInstance();
    }
<pre>
Google Cloud Storage file source.
</pre>

<code>.google.cloud.translation.v3.GcsInputSource gcs_source = 3;</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/DatasetInputConfig.java