def Slot.read
import bend-kit-cache@0.3.0.0/cache.bend as Cacheimport Base
71# The fresh entry at `now`, or None when the caller must fetch.
72def Slot.read(-V: Data, s: Slot<V>, +now: Nat) -> Maybe<&2, Entry<V>>:
73 Slot{n, f, m} = s
74 Slot.lookup(V, m, now)