code: private ConfigurationRequest getConfigurationRequest(AlarmCallback callback) {
          if (callback instanceof EmailAlarmCallback && isPermitted(USERS_LIST)) {
              return ((EmailAlarmCallback) callback).getEnrichedRequestedConfiguration();
          }
  
          return callback.getRequestedConfiguration();
      }
docs: /* This is used to add user auto-completion to EmailAlarmCallback when the current user has permissions to list users