code: import stripe
  stripe.api_key = "sk_test_your_key"
  
  stripe.Coupon.retrieve("Z4OV52SU")
  '''Response {
    "id": "Z4OV52SU",
    "object": "coupon",
    "amount_off": null,
    "created": 1659519093,
    "currency": "usd",
    "duration": "repeating",
    "duration_in_months": 3,
    "livemode": false,
    "max_redemptions": null,
    "metadata": {},
    "name": "25.5% off",
    "percent_off": 25.5,
    "redeem_by": null,
    "times_redeemed": 0,
    "valid": true
  }'''
nl: Retrieve a couponRetrieves the coupon with the given ID.ParametersNo parameters.ReturnsReturns a coupon if a valid coupon ID was provided. Raises an error otherwise