val of_tree : Store.t -> FS.t -> Store.Hash.t -> (Entry.entry list, error) Stdlib.result Lwt.tval of_commit : Store.t -> FS.t -> Store.Hash.t -> (Entry.entry list, error) Stdlib.result Lwt.tval of_reference : Store.t -> FS.t -> Store.Reference.t -> (Entry.entry list, error) Stdlib.result Lwt.t