code: def update(self, enabled=values.unset, webhook_url=values.unset,
                 webhook_method=values.unset):
          
          return self._proxy.update(enabled=enabled, webhook_url=webhook_url, webhook_method=webhook_method, )
docs: Update the ExportConfigurationInstance
  
          :param bool enabled: The enabled
          :param unicode webhook_url: The webhook_url
          :param unicode webhook_method: The webhook_method
  
          :returns: Updated ExportConfigurationInstance
          :rtype: twilio.rest.preview.bulk_exports.export_configuration.ExportConfigurationInstance