docs: function (embedder, guestInstanceId) {
    const guestInstance = guestInstances[guestInstanceId]
    if (embedder !== guestInstance.embedder) {
      return
    }
  
    webViewManager.removeGuest(embedder, guestInstanceId)
    delete guestInstances[guestInstanceId]
  
    const key = `${embedder.id}-${guestInstance.elementInstanceId}`
    delete embedderElementsMap[key]
  }