alter(clojure.core)

Must be called in a transaction. Sets the in-transaction-value of ref to:

(apply fun in-transaction-value-of-ref args)

and returns the in-transaction-value of ref.

; clojure/core.clj:1368
(defn alter
  [#^clojure.lang.Ref ref fun & args]
    (. ref (alter fun args)))

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