Clojure 使specter返回（部分）所选路径

在下面的结构中，我知道如何迭代

:x

的所有子级的

:which

：

=> (specter/select
       [:whatever specter/MAP-VALS :x]
       {:whatever {:a {:x 1} :b {:x 2}}})
[1 2]

我想得到的是下面这样的东西，其中包含通配符映射键

[[:a 1] [:b 2]]

用幽灵怎么能做到这一点

(select
        [:whatever ALL (collect-one FIRST) LAST :x]
        {:whatever {:a {:x 1}
                    :b {:x 2}
                    :c {:x 55}}})
=> [[:a 1] [:b 2] [:c 55]]