text: // 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 Twilio = require('twilio').Twilio;
  
  const client = new Twilio(accountSid, authToken);
  const service = client.chat.services('ISXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX');
  
  service
    .channels('CHXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
    .members.list()
    .then(response => {
      console.log(response);
    })
    .catch(error => {
      console.log(error);
    });
  