val baseuri_of_file : string -> string
-val baseuri_of_baseuri_decl : ('a, 'b, 'c) GrafiteAst.statement -> string option
+val baseuri_of_baseuri_decl:
+ ('a, 'b, 'c, 'd, 'e) GrafiteAst.statement -> string option
(** check whether no objects are defined below a given baseuri *)
val is_empty: string -> bool