const providerDef =
    (allowPrivateServices ? elDef.element !.allProviders :
                            elDef.element !.publicProviders) ![tokenKey];
if (providerDef) {
  const providerData = asProviderData(view, providerDef.index);
  if (providerData.instance === NOT_CREATED) {
    providerData.instance = _createProviderInstance(view, providerDef);
  }
  return providerData.instance;
}