public java.lang.String getLanguageCode() {
        java.lang.Object ref = languageCode_;
        if (!(ref instanceof java.lang.String)) {
          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
          java.lang.String s = bs.toStringUtf8();
          languageCode_ = s;
          return s;
        } else {
          return (java.lang.String) ref;
        }
      }
<pre>
The BCP-47 language code, 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/ProductSearchResults.java