docs: public static Builder builder(Type type, long messageId) {
      return new AutoValue_MessageEvent.Builder()
          .setType(Utils.checkNotNull(type, "type"))
          .setMessageId(messageId)
          // We need to set a value for the message size because the autovalue requires all
          // primitives to be initialized.
          .setUncompressedMessageSize(0)
          .setCompressedMessageSize(0);
    }