private com.google.protobuf.RepeatedFieldBuilderV3<
              com.google.cloud.vision.v1p4beta1.TextAnnotation.DetectedLanguage,
              com.google.cloud.vision.v1p4beta1.TextAnnotation.DetectedLanguage.Builder,
              com.google.cloud.vision.v1p4beta1.TextAnnotation.DetectedLanguageOrBuilder>
          getDetectedLanguagesFieldBuilder() {
        if (detectedLanguagesBuilder_ == null) {
          detectedLanguagesBuilder_ =
              new com.google.protobuf.RepeatedFieldBuilderV3<
                  com.google.cloud.vision.v1p4beta1.TextAnnotation.DetectedLanguage,
                  com.google.cloud.vision.v1p4beta1.TextAnnotation.DetectedLanguage.Builder,
                  com.google.cloud.vision.v1p4beta1.TextAnnotation.DetectedLanguageOrBuilder>(
                  detectedLanguages_,
                  ((bitField0_ & 0x00000001) != 0),
                  getParentForChildren(),
                  isClean());
          detectedLanguages_ = null;
        }
        return detectedLanguagesBuilder_;
      }
<pre>
A list of detected languages together with confidence.
</pre>

<code>
repeated .google.cloud.vision.v1p4beta1.TextAnnotation.DetectedLanguage detected_languages = 1;
</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/TextAnnotation.java