type test = {
markdown : string;
html : string;
example : int;
start_line : int;
end_line : int;
section : string;
}
val parse_tests : string -> (test list, string) Stdlib.result
val diff : spec:string -> string -> string
val ok : string B0_std.Fmt.t
val fail : string B0_std.Fmt.t
val cli : exe:string -> unit -> bool * string * int list