@java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      parent_ = "";
      sourceLanguageCode_ = "";
      targetLanguageCode_ = "";
      documentInputConfig_ = null;
      if (documentInputConfigBuilder_ != null) {
        documentInputConfigBuilder_.dispose();
        documentInputConfigBuilder_ = null;
      }
      documentOutputConfig_ = null;
      if (documentOutputConfigBuilder_ != null) {
        documentOutputConfigBuilder_.dispose();
        documentOutputConfigBuilder_ = null;
      }
      model_ = "";
      glossaryConfig_ = null;
      if (glossaryConfigBuilder_ != null) {
        glossaryConfigBuilder_.dispose();
        glossaryConfigBuilder_ = null;
      }
      internalGetMutableLabels().clear();
      customizedAttribution_ = "";
      isTranslateNativePdfOnly_ = false;
      enableShadowRemovalNativePdf_ = false;
      enableRotationCorrection_ = false;
      return this;
    }
<pre>
A document translation request.
</pre>

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