Get Routable EngineInstance

[buschtoens]

$edb.getEngineInstanceForRoute('some.mount.point') => Promise<EngineInstance>

class EDB {
  async getEngineInstanceForRoute(mountPoint: string): Promise<EngineInstance> {
    const router = this.owner.lookup('router:main');
    const engineApplicationRoute = await router._routerMicrolib.getRoute(mountPoint)
    const engineInstance = getOwner(engineApplicationRoute);
    return engineInstance;
  }
}

[SYU15]

I am wondering if we would even want to abstract it further to get get the routerLib by checking for both router._routerMicrolib and router.router.