如何在Swift中按数组计数对Firebase NSDictionary项目进行分组？

let firebaseRef = Database.database().reference()
firebaseRef.observeSingleEvent(of: .value) { (snapshot) in
    if let dict = snapshot.value as? NSDictionary {
        let itemsArray = dict.allValues
        // 对itemsArray进行分组操作
    }
}

var groupedItems = [String: [Any]]()
for item in itemsArray {
    if let itemDict = item as? NSDictionary {
        if let count = itemDict["count"] as? Int, let name = itemDict["name"] as? String {
            if groupedItems[name] == nil {
                groupedItems[name] = [Any]()
            }
            groupedItems[name]?.append(item)
        }
    }
}

for (groupName, items) in groupedItems {
    print("Group: \(groupName)")
    for item in items {
        print(item)
    }
}