将Any转换为Array <object>

Question

我有一个变量ranks，输出如下，但这是Any类型。但是，我想将其转换为Array<Ladder>到目前为止，我已尝试编写as! [Ladder]，但无效。

Optional(Optional(Set([Ladder {
    id = 58268b08f5f51a16b8d53474;
    name = Gold;
}, Ladder {
    id = 58268b08f5f51a16b8d53478;
    name = Challenger;
}, Ladder {
    id = 58268b08f5f51a16b8d53476;
    name = Diamond;
}])))

尤里卡功能

        <<< MultipleSelectorRow<Ladder>("Rank") {
            $0.hidden = Condition.predicate(NSPredicate(format: "$Game == nil"))
            $0.title = $0.tag


            }.cellUpdate { cell, row in

                let formvalues = self.form.values()
                let game = formvalues["Game"] as! Game
                let ranks = Array(game.ranks)
                row.options = ranks
                row.displayValueFor = { (rowValue: Set<Ladder>?) in
                    return rowValue?.map({ $0.name }).sorted().joined(separator: ", ")
                }


                cell.textLabel?.font = UIFont(name: "Avenir-Book", size: 16)

                cell.preservesSuperviewLayoutMargins = false
                cell.separatorInset = UIEdgeInsets.zero
                cell.layoutMargins = UIEdgeInsets.zero

        }