public Builder mergeEventUpdate(com.google.cloud.visionai.v1.EventUpdate value) {
      if (eventUpdateBuilder_ == null) {
        if (responseCase_ == 1
            && response_ != com.google.cloud.visionai.v1.EventUpdate.getDefaultInstance()) {
          response_ =
              com.google.cloud.visionai.v1.EventUpdate.newBuilder(
                      (com.google.cloud.visionai.v1.EventUpdate) response_)
                  .mergeFrom(value)
                  .buildPartial();
        } else {
          response_ = value;
        }
        onChanged();
      } else {
        if (responseCase_ == 1) {
          eventUpdateBuilder_.mergeFrom(value);
        } else {
          eventUpdateBuilder_.setMessage(value);
        }
      }
      responseCase_ = 1;
      return this;
    }
<pre>
The event update message.
</pre>

<code>.google.cloud.visionai.v1.EventUpdate event_update = 1;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/ReceiveEventsResponse.java