);
	}

	/**
	 * Get the base schema for the REST API endpoints.
	 *
	 * @return array
	 */
	protected function get_base_schema(): array {
		return array(
			'$schema' => 'http://json-schema.org/draft-04/schema#',
			'title'   => 'order receipts',
			'type'    => 'object',
		);
	}
}