code: def domain(self, service):
      ns = self._default_namespace
      if self._location == "k8s":
          return f"{service}.{ns}"
      if self._location == "gce":
          if self._base_path is None:
              return f"{service}.hail"
          return "internal.hail"
      assert self._location == "external"
      if self._base_path is None:
          return f"{service}.{self._domain}"
      return self._domain
  
imports: from typing import Dict, Optional, TypeVar, Union
  import os
  import json
  import logging
  from ..utils import first_extant_file
  from .user_config import get_user_config
label_desc: Use image node_id 10 for calling the DeployConfig obj's underlying member method code with example usage: obj.domain(service) and returns: self, service, str, ns, str, service, str, self, service, str