code: def create(self, update_request):
          
          data = values.of({'UpdateRequest': update_request, })
  
          payload = self._version.create(
              'POST',
              self._uri,
              data=data,
          )
  
          return BulkCountryUpdateInstance(self._version, payload, )
docs: Create a new BulkCountryUpdateInstance
  
          :param unicode update_request: URL encoded JSON array of update objects
  
          :returns: Newly created BulkCountryUpdateInstance
          :rtype: twilio.rest.voice.v1.dialing_permissions.bulk_country_update.BulkCountryUpdateInstance