Get bundle details by handle

curl --request GET \
  --url https://membership-admin.appstle.com/api/external/v2/subscription-bundlings/external/get-bundle/{handle}

{
  "bundle": {
    "shop": "<string>",
    "id": 123,
    "subscriptionBundlingEnabled": true,
    "subscriptionId": 123,
    "minProductCount": 123,
    "maxProductCount": 123,
    "discount": 123,
    "uniqueRef": "<string>"
  },
  "subscription": {
    "shop": "<string>",
    "id": 123,
    "groupName": "<string>",
    "subscriptionId": 123,
    "productCount": 123,
    "productVariantCount": 123,
    "infoJson": "<string>",
    "productIds": "<string>",
    "variantIds": "<string>",
    "variantProductIds": "<string>",
    "customerTag": "<string>",
    "orderTag": "<string>",
    "rulesJson": "<string>",
    "formFieldsJson": "<string>",
    "savedSearchId": "<string>",
    "savedSegmentSearchId": "<string>",
    "planSequence": 123,
    "memberOrderTag": "<string>",
    "translations": "<string>"
  },
  "products": [
    {
      "shop": "<string>",
      "id": 123,
      "productId": 123,
      "productTitle": "<string>",
      "productHandle": "<string>"
    }
  ],
  "variants": [
    "<string>"
  ]
}