Swift how to delete childs value which is an Dictionary

Question

i try to delete a childs value in my document to delete. The value is an Dictionary and i need to delete the whole Dictionary but XCode says :

Cannot convert value of type 'Dictionary' to expected argument type '[Any]'

Here is my Code:

var lists = [Dictionary<String, String>
             let washingtonRef = db.collection("Users").document(userid!)
             washingtonRef.updateData([
             "shoppingLists":
             FieldValue.arrayRemove(self.lists[sender.tag] as!
                 Dictionary<String,
                 String>)])

Answer 1

I solved it using this code:

 let washingtonRef = db.collection("Users").document(userid!)

        // Atomically add a new region to the "regions" array field.
        washingtonRef.updateData([
            "shoppingLists": FieldValue.arrayRemove([self.filteredData[sender.tag] as! Any])

            ])