ect.
	 * @returns WP_REST_Response
	 */
	public static function add_currency_symbol_to_order_response( $response ) {
		$response_data                    = $response->get_data();
		$currency_code                    = $response_data['currency'];
		$currency_symbol                  = get_woocommerce_currency_symbol( $currency_code );
		$response_data['currency_symbol'] = html_entity_decode( $currency_symbol );
		$response->set_data( $response_data );

		return $response;
	}
}