import Telnyx from 'telnyx';

const client = new Telnyx({
  apiKey: 'My API Key',
});

const response = await client.bundlePricing.userBundles.listUnused();

console.log(response.data);

{
  "data": [
    {
      "billing_bundle": {
        "id": "7ecd040e-6bac-4139-9160-3c0427d98fea",
        "name": "Australia Basic",
        "cost_code": "BUNDLE-PRICING-BASIC-MRC",
        "is_public": true,
        "created_at": "2023-12-25",
        "slug": "basic-au-e4f8",
        "mrc_price": 2,
        "currency": "USD",
        "specs": [
          "1 AU Number",
          "Emergency Calling",
          "All inbound and outbound calling billed pay-as-you-go"
        ]
      },
      "user_bundle_ids": [
        "1e650b96-4c6a-4d6f-b8ed-87c3fcacf595",
        "53beb701-1231-4548-8abf-c802f38b14aa"
      ]
    }
  ]
}