@java.lang.Override
    public int getSerializedSize() {
      int size = memoizedSize;
      if (size != -1) return size;

      size = 0;
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(sourceSentence_)) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, sourceSentence_);
      }
      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(targetSentence_)) {
        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, targetSentence_);
      }
      size += getUnknownFields().getSerializedSize();
      memoizedSize = size;
      return size;
    }
<pre>
Target sentence in the sentence pair.
</pre>

<code>string target_sentence = 2;</code>

@return The bytes for targetSentence.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/AdaptiveMtTranslateRequest.java