code: func isExtendedResourceNameForQuota(name corev1.ResourceName) bool {
  	// As overcommit is not supported by extended resources for now,
  	// only quota objects in format of "requests.resourceName" is allowed.
  	return !helper.IsNativeResource(name) && strings.HasPrefix(string(name), corev1.DefaultResourceRequestsPrefix)
  }
docs: // isExtendedResourceNameForQuota returns true if the extended resource name
  // has the quota related resource prefix.