public Builder addDetectedLanguages(
          com.google.cloud.vision.v1.TextAnnotation.DetectedLanguage.Builder builderForValue) {
        if (detectedLanguagesBuilder_ == null) {
          ensureDetectedLanguagesIsMutable();
          detectedLanguages_.add(builderForValue.build());
          onChanged();
        } else {
          detectedLanguagesBuilder_.addMessage(builderForValue.build());
        }
        return this;
      }
<pre>
A list of detected languages together with confidence.
</pre>

<code>
repeated .google.cloud.vision.v1.TextAnnotation.DetectedLanguage detected_languages = 1;
</code>
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/TextAnnotation.java