`val string_of_vpkg : Packages_types.vpkg -> string`
`val string_of_vpkglist : Packages_types.vpkglist -> string`
`val string_of_vpkgformula : Packages_types.vpkgformula -> string`
`val string_of_builddep : Packages_types.builddep -> string`
`val string_of_builddeplist : Packages_types.builddepslist -> string`
`val string_of_builddepformula : Packages_types.builddepsformula -> string`
`val string_of_vpkgreq : Packages_types.vpkgreq -> string`
`val pp_vpkg : Stdlib.out_channel -> Packages_types.vpkg -> unit`
`val pp_vpkglist : Stdlib.out_channel -> Packages_types.vpkglist -> unit`
`val pp_vpkgformula : Stdlib.out_channel -> Packages_types.vpkgformula -> unit`
`val pp_builddep : Stdlib.out_channel -> Packages_types.builddep -> unit`
`val pp_builddepformula : Stdlib.out_channel -> Packages_types.builddepsformula -> unit`
`val pp_builddeplist : Stdlib.out_channel -> Packages_types.builddepslist -> unit`
`val pp_string_list : ?sep:string -> Stdlib.out_channel -> (string * string list) -> unit`
`val pp_function : Stdlib.out_channel -> tostring:('a -> string) -> (string * 'a) -> unit`
`val pp_string_wl : Stdlib.out_channel -> (string * string) -> unit`
`val pp_bool_wl : Stdlib.out_channel -> (string * bool) -> unit`
`val pp_yes_wl : Stdlib.out_channel -> (string * bool) -> unit`
`val pp_vpkglist_wl : Stdlib.out_channel -> (string * Packages_types.vpkglist) -> unit`
`val pp_vpkgformula_wl : Stdlib.out_channel -> (string * Packages_types.vpkgformula) -> unit`
`val pp_builddepformula_wl : Stdlib.out_channel -> (string * Packages_types.builddepsformula) -> unit`
`val pp_builddeplist_wl : Stdlib.out_channel -> (string * Packages_types.builddepslist) -> unit`
`val pp_function_wl : Stdlib.out_channel -> tostring:('a -> string) -> (string * 'a) -> unit`
`val pp_string_list_wl : ?sep:string -> Stdlib.out_channel -> (string * string list) -> unit`