def get_hostname(self, module, version, instance=None):
    if module not in self._module_name_to_version_to_hostname:
      raise ModuleDoesNotExistError()
    if version not in self._module_name_to_version_to_hostname[module]:
      raise VersionDoesNotExistError()
    if instance:

      raise InvalidInstanceIdError()
    return self._module_name_to_version_to_hostname[module][version]
od.values() -> list of values in od
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/api/request_info.py/_LocalFakeDispatcher.get_hostname--crossover with--dataset/ETHPy150Open xraypy/xraylarch/doc/sphinx/ext/backports.py/OrderedDict.values