private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.translate.v3beta1.DocumentTranslation,
            com.google.cloud.translate.v3beta1.DocumentTranslation.Builder,
            com.google.cloud.translate.v3beta1.DocumentTranslationOrBuilder>
        getDocumentTranslationFieldBuilder() {
      if (documentTranslationBuilder_ == null) {
        documentTranslationBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.translate.v3beta1.DocumentTranslation,
                com.google.cloud.translate.v3beta1.DocumentTranslation.Builder,
                com.google.cloud.translate.v3beta1.DocumentTranslationOrBuilder>(
                getDocumentTranslation(), getParentForChildren(), isClean());
        documentTranslation_ = null;
      }
      return documentTranslationBuilder_;
    }
<pre>
Translated document.
</pre>

<code>.google.cloud.translation.v3beta1.DocumentTranslation document_translation = 1;</code>
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/TranslateDocumentResponse.java