Tezos_lazy_containers.Lazy_mapmodule type KeyS = sig ... endKeyS is the qualifier signature for key types in the lazy map. Externally visible and accessible keys of the lazy map are always non-negative. However, the lazy map implementation may internally use negative keys therefore modules of type KeyS must support them.
module type S = sig ... endUnexpectedAccess is raised in the default of the produce_value argument to S.create.
module LwtInt32Map : S with type key = int32module LwtInt64Map : S with type key = int64module Mutable : sig ... endMake generates a lazy map module using a given Key module.