public Builder clearFeatures() {
      features_ = java.util.Collections.emptyList();
      bitField0_ = (bitField0_ & ~0x00000004);
      onChanged();
      return this;
    }
<pre>
Required. Requested video annotation features.
</pre>

<code>
repeated .google.cloud.videointelligence.v1.Feature features = 2 [(.google.api.field_behavior) = REQUIRED];
</code>

@return This builder for chaining.
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/AnnotateVideoRequest.java