val remove_server: ?logger:logger_callback -> int -> unit
val getalluris: unit -> string list
val getallrdfuris: [ `Forward | `Backward ] -> string list
-val ls: xml_uri -> ls_item list
+
+ (** @param regexp regular expression (PCRE syntax) over HELM URIs *)
+val ls: string -> ls_item list
(** {2 Shorthands} *)