class Nothing extends Base {

	/**
	 * {@inheritDoc}
	 */
	protected function get_cache_slug() {
		return '';
	}

	/**
	 * {@inheritDoc}
	 */
	protected function build_properties( $filter ) {
		return [];
	}

	/**
	 * {@inheritDoc}
	 */
	public function to_post( $output = OBJECT, $filter = 'raw' ) {
		return null;
	}
}