import Conductor from 'conductor-node';

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

const invoice = await conductor.qbd.invoices.delete('123ABC-1234567890', {
  conductorEndUserId: 'end_usr_1234567abcdefg',
});

console.log(invoice.id);

{
  "id": "123ABC-1234567890",
  "objectType": "qbd_invoice",
  "refNumber": "INV-1234",
  "deleted": true
}