text: const AuthenticationEvents = {
      /**
       * Event callback arguments:
       * function(authenticationEnabled, userIdentity)
       * authenticationEnabled - indicates whether authentication has been enabled
       *                         in this session
       * userIdentity - if user has been logged in then it contains user name. If
       *                contains 'null' or 'undefined' then user is not logged in.
       */
      IDENTITY_UPDATED: 'authentication.identity_updated'
  };
  module.exports = AuthenticationEvents;
  