@java.lang.Override
    public java.lang.String getLanguageCode() {
      java.lang.Object ref = languageCode_;
      if (ref instanceof java.lang.String) {
        return (java.lang.String) ref;
      } else {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        languageCode_ = s;
        return s;
      }
    }
<pre>
The BCP-47 language code for `label`, such as "en-US" or "sr-Latn".
For more information, see
http://www.unicode.org/reports/tr35/#Unicode_locale_identifier.
</pre>

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

@return The languageCode.
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/WebDetection.java