public com.google.cloud.vision.v1p3beta1.Feature.Builder getFeaturesBuilder(int index) {
      return getFeaturesFieldBuilder().getBuilder(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