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keep

memoized_effect.keep

(k K, f Unary V K)
 => 
V
use this memoized effect to retrieve the value for a given key or,
if that value was not calculated yet, to calculate it
0.099dev (GIT hash 250922c42fb1dcef5ce7ce89820538f53498ca37)
last changed: 2026-08-14