code: def get_endpoint(brain_or_object, default=DEFAULT_ENDPOINT):
      
      portal_type = get_portal_type(brain_or_object)
      resource = portal_type_to_resource(portal_type)
  
      # Try to get the right namespaced endpoint
      endpoints = router.DefaultRouter.view_functions.keys()
      if resource in endpoints:
          return resource  # exact match
      endpoint_candidates = filter(lambda e: e.endswith(resource), endpoints)
      if len(endpoint_candidates) == 1:
          # only return the namespaced endpoint, if we have an exact match
          return endpoint_candidates[0]
  
      return default
docs: Calculate the endpoint for this object
  
      :param brain_or_object: A single catalog brain or content object
      :type brain_or_object: ATContentType/DexterityContentType/CatalogBrain
      :returns: Endpoint for this object
      :rtype: string