code: def webhooks(self):
          
          if self._webhooks is None:
              self._webhooks = WebhookList(
                  self._version,
                  service_sid=self._solution['service_sid'],
                  channel_sid=self._solution['sid'],
              )
          return self._webhooks
docs: Access the webhooks
  
          :returns: twilio.rest.chat.v2.service.channel.webhook.WebhookList
          :rtype: twilio.rest.chat.v2.service.channel.webhook.WebhookList