cmp.worker.write-exchange
write-exchange!
(write-exchange! {val :Value, mp-id :MpName, state-key :StateKey, exch-path :ExchangePath, :as task})Writes the :Value to the exchange.
(write-exchange! {:Value {:a 1 :b 2} :MpName "ref"})
;;
(st/key->val "ref@exchange@b")
;; 2