How to delete document from firebase using flutter Getx

hello friends, i have added my items on wishlist by using this method successful:

onTap: () async {
await FirebaseFirestore.instance
‘title’: Get.arguments[‘title’],
‘image’: Get.arguments[‘image’],
}).whenComplete(() {
‘${Get.arguments[‘title’]} is added to Wishlist’,
colorText: Colors.white,
snackPosition: SnackPosition.BOTTOM,
backgroundColor: Colors.redAccent);

After adding them, now i’m trying remove (delete document from firebase) them from wishlist without success, Getx,

how can i achieve that?