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(.using
 [library
  [lux (.full)
   ["_" test (.only Test)]
   [abstract
    [monad (.only do)]]
   [math
    ["[0]" random (.only Random)]
    [number
     ["n" nat]]]]]
 [\\library
  ["[0]" /]])

(def: .public (spec (open "_#[0]") random)
  (All (_ a) (-> (/.Hash a) (Random a) Test))
  (do random.monad
    [parameter random
     subject random]
    (_.coverage [/.Hash]
      (if (_#= parameter subject)
        (n.= (_#hash parameter) (_#hash subject))
        true))))