import Telnyx from 'telnyx';

const client = new Telnyx({
  apiKey: process.env['TELNYX_API_KEY'], // This is the default and can be omitted
});

await client.whatsapp.businessAccounts.phoneNumbers.initializeVerification('id', {
  display_name: 'display_name',
  phone_number: 'phone_number',
});

{
  "errors": [
    {
      "code": "<string>",
      "title": "<string>",
      "detail": "<string>",
      "source": {
        "pointer": "<string>",
        "parameter": "<string>"
      },
      "meta": {}
    }
  ]
}