public com.google.cloud.vision.v1p3beta1.FeatureOrBuilder getFeaturesOrBuilder(int index) {
      if (featuresBuilder_ == null) {
        return features_.get(index);
      } else {
        return featuresBuilder_.getMessageOrBuilder(index);
      }
    }
<pre>
Required. Requested features.
</pre>

<code>repeated .google.cloud.vision.v1p3beta1.Feature features = 2;</code>
java-vision/proto-google-cloud-vision-v1p3beta1/src/main/java/com/google/cloud/vision/v1p3beta1/AsyncAnnotateFileRequest.java