code: def allowed_domains(self):
          
          if self._allowed_domains is None:
              uri = "/loadbalancers/alloweddomains"
              resp, body = self.method_get(uri)
              dom_list = body["allowedDomains"]
              self._allowed_domains = [itm["allowedDomain"]["name"]
                      for itm in dom_list]
          return self._allowed_domains
docs: This property lists the allowed domains for a load balancer.
  
          The allowed domains are restrictions set for the allowed domain names
          used for adding load balancer nodes. In order to submit a domain name
          as an address for the load balancer node to add, the user must verify
          that the domain is valid by using the List Allowed Domains call. Once
          verified, simply supply the domain name in place of the node's address
          in the add_nodes() call.