+val fail: CicAst.location -> string -> 'a
+
+(**/**)
+
+(** {2 Interface for gTopLevel} *)
+
+module EnvironmentP3:
+ (* environment parser/pretty-printer *)
+ sig
+ type t = DisambiguateTypes.environment
+ val empty : string
+ val to_string : t -> string
+ val of_string : string -> t
+ end