public Builder setControl(
        com.google.cloud.visionai.v1.ReceiveEventsControlResponse.Builder builderForValue) {
      if (controlBuilder_ == null) {
        response_ = builderForValue.build();
        onChanged();
      } else {
        controlBuilder_.setMessage(builderForValue.build());
      }
      responseCase_ = 2;
      return this;
    }
<pre>
A control message from the server.
</pre>

<code>.google.cloud.visionai.v1.ReceiveEventsControlResponse control = 2;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/ReceiveEventsResponse.java