import Telnyx from 'telnyx';

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

const assistant = await client.ai.assistants.delete('assistant_id');

console.log(assistant.id);

{
  "id": "<string>",
  "object": "<string>",
  "deleted": true
}