public Builder setFeaturesValue(int index, int value) {
      ensureFeaturesIsMutable();
      features_.set(index, value);
      onChanged();
      return this;
    }
<pre>
Required. Requested video annotation features.
</pre>

<code>
repeated .google.cloud.videointelligence.v1p1beta1.Feature features = 2 [(.google.api.field_behavior) = REQUIRED];
</code>

@param index The index to set the value at.
@param value The enum numeric value on the wire for features to set.
@return This builder for chaining.
java-video-intelligence/proto-google-cloud-video-intelligence-v1p1beta1/src/main/java/com/google/cloud/videointelligence/v1p1beta1/AnnotateVideoRequest.java