mutation VoidPurchase($input: VoidPurchaseInput!) {
  voidPurchase(input: $input) {
    clientMutationId
    errors
    purchase {
      amount
      couponRedemption {
        completed
        coupon {
          __typename
        }
        createdAt
        id
        member {
          __typename
        }
        plan {
          __typename
        }
      }
      createdAt
      currency
      devicePlatform
      id
    }
  }
}

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

{
  "data": {
    "voidPurchase": {
      "clientMutationId": "string",
      "errors": [
        "string"
      ],
      "purchase": {
        "amount": 1,
        "couponRedemption": {
          "completed": true,
          "coupon": {
            "__typename": "PaymentCoupon"
          },
          "createdAt": "value",
          "id": "id",
          "member": {
            "__typename": "User"
          },
          "plan": {
            "__typename": "PaymentPlan"
          }
        },
        "createdAt": "value",
        "currency": "string",
        "devicePlatform": "string",
        "id": "id"
      }
    }
  }
}