module Persistent_singleton: Persistent_singleton
val __pa_ounit_275876e34cf609db118f3d84b799a790 : string
Implements a value that is either in a file, or in memory, but not both. Is used by
    live and the friend to store sequence numbers and counters. If the value is moved to
    memory, changed, and then the process crashes, the file will correctly reflect that
    the value has been lost.
module type Arg = Core.Std.Sexpable
module type S = sig .. end
module Make: functor (Z : Arg) -> sig .. end
Implements a value that is either in a file, or in memory, but not both. Is used by
    live and the friend to store sequence numbers and counters. If the value is moved to
    memory, changed, and then the process crashes, the file will correctly reflect that
    the value has been lost.