我已经创建了简单的异步函数来从cloudkit中获取给定类型的所有记录：

func fetchAllOf(
    types: [String],
    handler: ProgressHandler?,
    completion: ErrorHandler?
) async {
    var newTypes = types
    var allRecords = [CKRecord]()
    newTypes.forEach { type in
        await fetchAllOf(type: type, handler: handler) { records, error in
            guard let error = error else {
                allRecords += records
                return
            }
            completion?(error)
        }
    }
}

其中：

private func fetchAllOf(
    type: String,
    predicate: NSPredicate = NSPredicate(value: true),
    handler: ProgressHandler?,
    completion: RecordsErrorHandler?
) async {
}

为什么我在那里有一个错误？