code: def applications(self):
          
          if self._applications is None:
              self._applications = ApplicationList(self._version, account_sid=self._solution['sid'], )
          return self._applications
docs: Access the applications
  
          :returns: twilio.rest.api.v2010.account.application.ApplicationList
          :rtype: twilio.rest.api.v2010.account.application.ApplicationList