@java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      eventMessage_ = "";
      payload_ = null;
      if (payloadBuilder_ != null) {
        payloadBuilder_.dispose();
        payloadBuilder_ = null;
      }
      eventId_ = "";
      return this;
    }
<pre>
Message of content of appPlatform event
</pre>

Protobuf type {@code google.cloud.visionai.v1.AppPlatformEventBody}
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/AppPlatformEventBody.java