Recursively transforms all map keys from strings to keywords.
Source
(defnkeywordize-keys"Recursively transforms all map keys from strings to keywords."{:added"1.1"}[m](let[f(fn[[kv]](if(string?k)[(keywordk)v][kv]))]
;; only apply to maps
(postwalk(fn[x](if(map?x)(into{}(mapfx))x))m)))