val to_string : Base.Exn.t -> [ `Deprecated_use_Exn_to_string_instead ]val print : Base.Exn.t -> [ `Deprecated_use_Exn_to_string_instead ]val print_backtrace : Stdlib.out_channel -> Base.Unit.tval get_backtrace : Base.Unit.t -> Base.String.tval record_backtrace : Base.Bool.t -> Base.Unit.tval backtrace_status : Base.Unit.t -> Base.Bool.t