text: // Download the Node helper library from www.twilio.com/docs/libraries/node#installation
  // These identifiers are your accountSid and authToken from
  // https://www.twilio.com/console
  // To set up environmental variables, see http://twil.io/secure
  const accountSid = process.env.TWILIO_ACCOUNT_SID;
  const authToken = process.env.TWILIO_AUTH_TOKEN;
  const client = require('twilio')(accountSid, authToken);
  
  credentialSid = 'CRXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX';
  
  client.notify
    .credentials(credentialSid)
    .remove(wasRemoved => {
      if (wasRemoved) {
        console.log('Credential ' + credentialSid + ' was removed.');
      }
    })
    .done();
  