mutation UpdatePaymentCoupon($input: UpdatePaymentCouponInput!) {
  updatePaymentCoupon(input: $input) {
    clientMutationId
    errors
    paymentCoupon {
      amountOff {
        currency
        value
      }
      code
      couponType
      createdAt
      description
      duration
    }
  }
}

{
  "input": {
    "id": "id"
  }
}

{
  "data": {
    "updatePaymentCoupon": {
      "clientMutationId": "string",
      "errors": [
        "string"
      ],
      "paymentCoupon": {
        "amountOff": [
          {
            "currency": "string",
            "value": 1
          }
        ],
        "code": "string",
        "couponType": "AMOUNT_OFF",
        "createdAt": "value",
        "description": "string",
        "duration": "FOREVER"
      }
    }
  }
}