stdlib/source/library/lux/tool/compiler/meta/archive/key.lux


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(.using
 [library
  [lux "*"
   [type
    abstract]]]
 [//
  [signature {"+" Signature}]])

(abstract: .public (Key k)
  Signature

  (def: .public signature
    (All (_ ?) (-> (Key ?) Signature))
    (|>> :representation))

  (def: .public (key signature sample)
    (All (_ d) (-> Signature d (Key d)))
    (:abstraction signature))
  )