val pp_open_tag : Stdlib.Format.formatter -> Stdlib.Format.tag -> unit
val pp_close_tag : Stdlib.Format.formatter -> unit -> unit
val pp_get_formatter_tag_functions : Stdlib.Format.formatter -> unit -> Stdlib.Format.formatter_tag_functions
val pp_set_formatter_tag_functions : Stdlib.Format.formatter -> Stdlib.Format.formatter_tag_functions -> unit
val cc_update_funs : Stdlib.Format.formatter_tag_functions -> (or_else:(Stdlib.Format.tag -> string) -> Stdlib.Format.tag -> string) -> (or_else:(Stdlib.Format.tag -> string) -> Stdlib.Format.tag -> string) -> Stdlib.Format.formatter_tag_functions