public static com.google.cloud.vision.v1.WebDetection.WebLabel parseFrom(
        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
        throws java.io.IOException {
      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
          PARSER, input, extensionRegistry);
    }
<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 bytes for languageCode.
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/WebDetection.java