code: function TwilioConnector(settings) {
  
      assert(typeof settings === 'object', 'cannot initialize TwilioConnector without a settings object');
      var connector = this;
  
      var accountSid = this.accountSid = settings.accountSid;
      var authToken = this.authToken = settings.authToken;
      var sgAPIKey = this.sgAPIKey = settings.sgAPIKey;
  
      twilio = connector.twilio = require('twilio')(accountSid, authToken);
      sgMail = connector.sgMail = require('@sendgrid/mail');
      sgMail.setApiKey(sgAPIKey);
  }
docs: Create an instance of the connector with the given `settings`.