public Builder mergeDocumentTranslation(
        com.google.cloud.translate.v3.DocumentTranslation value) {
      if (documentTranslationBuilder_ == null) {
        if (((bitField0_ & 0x00000001) != 0)
            && documentTranslation_ != null
            && documentTranslation_
                != com.google.cloud.translate.v3.DocumentTranslation.getDefaultInstance()) {
          getDocumentTranslationBuilder().mergeFrom(value);
        } else {
          documentTranslation_ = value;
        }
      } else {
        documentTranslationBuilder_.mergeFrom(value);
      }
      if (documentTranslation_ != null) {
        bitField0_ |= 0x00000001;
        onChanged();
      }
      return this;
    }
<pre>
Translated document.
</pre>

<code>.google.cloud.translation.v3.DocumentTranslation document_translation = 1;</code>
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/TranslateDocumentResponse.java