curl \
--request PUT 'https://dev.sellpass.io/self/{shopId}/coupons/{couponId}' \
--header "Authorization: $API_KEY" \
--header "Content-Type: application/json" \
--data '{"name":"string","note":"string","discount":42.0,"isFixed":true,"startDate":"2025-05-04T09:42:00Z","endDate":"2025-05-04T09:42:00Z","restrictToProducts":[42],"restrictToGateways":[0],"maxUses":42}'
curl \
--request PUT 'https://dev.sellpass.io/self/{shopId}/coupons/{couponId}' \
--header "Authorization: $API_KEY" \
--header "Content-Type: text/json"
curl \
--request PUT 'https://dev.sellpass.io/self/{shopId}/coupons/{couponId}' \
--header "Authorization: $API_KEY" \
--header "Content-Type: application/*+json"