Namespace Android.App.Assist Classes AssistContent https://developer.android.com/reference/android/app/assist/AssistContent.html AssistStructure https://developer.android.com/reference/android/app/assist/AssistStructure.html AssistStructure.ViewNode https://developer.android.com/reference/android/app/assist/AssistStructure.ViewNode.html AssistStructure.WindowNode https://developer.android.com/reference/android/app/assist/AssistStructure.WindowNode.html