import Telnyx from 'telnyx';

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

await client.voiceDesigns.delete('id');

{
  "errors": [
    {
      "code": "10005",
      "title": "Resource not found",
      "detail": "Voice design not found"
    }
  ]
}