private void buildPartialOneofs(
        com.google.cloud.translate.v3beta1.BatchDocumentInputConfig result) {
      result.sourceCase_ = sourceCase_;
      result.source_ = this.source_;
      if (sourceCase_ == 1 && gcsSourceBuilder_ != null) {
        result.source_ = gcsSourceBuilder_.build();
      }
    }
<pre>
Input configuration for BatchTranslateDocument request.
</pre>

Protobuf type {@code google.cloud.translation.v3beta1.BatchDocumentInputConfig}
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/BatchDocumentInputConfig.java