public com.google.protobuf.ByteString getTargetLanguageBytes() {
      java.lang.Object ref = targetLanguage_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        targetLanguage_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }
<pre>
Required. The language code to translate to.
</pre>

<code>string target_language = 1 [(.google.api.field_behavior) = REQUIRED];</code>

@return The bytes for targetLanguage.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/TranslationConfig.java