message: core-api: Export ExternalRouteRef
diff: @@ -21,6 +21,10 @@ export type {
  MutableRouteRef,
  } from './types';
  export { FlatRoutes } from './FlatRoutes';
  -export { createRouteRef, createExternalRouteRef } from './RouteRef';
  +export {
  + createRouteRef,
  + createExternalRouteRef,
  + ExternalRouteRef,
  +} from './RouteRef';
  export type { RouteRefConfig } from './RouteRef';
  export { useRouteRef } from './hooks';
  