code: def _configure_cdn(self):
          
          ident = self.identity
          cdn_svc = ident.services.get("object_cdn")
          if cdn_svc:
              ep = cdn_svc.endpoints.get(self.region_name)
              if ep:
                  self.cdn_management_url = ep.public_url
docs: Initialize CDN-related endpoints, if available.