private void ensureContentsIsMutable() {
      if (!contents_.isModifiable()) {
        contents_ = new com.google.protobuf.LazyStringArrayList(contents_);
      }
      bitField0_ |= 0x00000001;
    }
<pre>
The request message for synchronous translation.
</pre>

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