val make_string_of : (Format.formatter ‑> 'a ‑> 'b) ‑> 'a ‑> string
val pp_exceptions : unit ‑> unit
val map_fst : ('a * 'b) list ‑> f:('a ‑> 'c) ‑> ('c * 'b) list
val map_snd : ('a * 'b) list ‑> f:('b ‑> 'c) ‑> ('a * 'c) list
val open_file : string ‑> unit
val compile_dot : ?format:string ‑> ?engine:string ‑> ?title:string ‑> string ‑> string
val show_dot : ?format:string ‑> ?title:string ‑> ?engine:string ‑> string ‑> unit
val show_dot_file : ?format:string ‑> ?title:string ‑> ?engine:string ‑> string ‑> unit