--- /dev/null
+type t
+
+val create : unit -> t
+
+val update
+ : t
+ -> node : string
+ -> modul : string
+ -> key : (string list)
+ -> value : string
+ -> time : Khatus_time.t
+ -> unit
+
+val dump_to_dir
+ : t
+ -> time:Khatus_time.t
+ -> node:string
+ -> modul:string
+ -> dir:string
+ -> unit