Since there is a delay when a value of an agent is updated, Clojure provided a ‘await-for’ function which is used to specify time in milliseconds to wait for the agent to be updated.
Following is the syntax.
(await-for time agentname)
Parameters − ‘agentname’ is the agent for which the ‘await-for’ function should be set to. ‘time’ is the time in milliseconds to wait.
Return Value − Returns logical false if returning due to timeout, otherwise returns logical true.
An example on how this is used is shown in the following program.
(ns clojure.examples.example (:gen-class)) (defn Example  (def counter (agent 0)) (println @counter) (send-off counter + 100) (println (await-for 100 counter)) (println @counter) (shutdown-agents)) (Example)
The above program produces the following output.
0 true 100
You can see from the above program that the value of the agent is printed to the screen immediately because the ‘await-for’ function incorporated a delay, which allowed Clojure to update the value of the agent.