cljs.spec.gen.alpha/frequency

function

previously cljs.spec.impl.gen/frequency

clojure.spec.gen.alpha/frequency

Edit

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Source docstring:

Lazy loaded version of clojure.test.check.generators/frequency

(lazy-combinators hash-map list map not-empty set vector vector-distinct fmap elements
  bind choose one-of such-that tuple sample return
  large-integer* double* frequency shuffle)

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