private void buildPartialOneofs(
          com.google.cloud.translate.v3.DatasetInputConfig.InputFile result) {
        result.sourceCase_ = sourceCase_;
        result.source_ = this.source_;
        if (sourceCase_ == 3 && gcsSourceBuilder_ != null) {
          result.source_ = gcsSourceBuilder_.build();
        }
      }
<pre>
An input file.
</pre>

Protobuf type {@code google.cloud.translation.v3.DatasetInputConfig.InputFile}
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/DatasetInputConfig.java