code: '''Endpoints  POST /v1/coupons   GET /v1/coupons/:id  POST /v1/coupons/:idDELETE /v1/coupons/:id   GET /v1/coupons
  '''
nl: CouponsA coupon contains information about a percent-off or amount-off discount you
  might want to apply to a customer. Coupons may be applied to subscriptions, invoices,
  checkout sessions, quotes, and more. Coupons do not work with conventional one-off charges or payment intents