`sig
type t
val create : int -> Netpagebuffer.t
val contents : Netpagebuffer.t -> string
val length : Netpagebuffer.t -> int
val sub : Netpagebuffer.t -> int -> int -> string
val blit_to_string : Netpagebuffer.t -> int -> string -> int -> int -> unit
val blit_to_memory :
Netpagebuffer.t -> int -> Netsys_mem.memory -> int -> int -> unit
val add_string : Netpagebuffer.t -> string -> unit
val add_sub_string : Netpagebuffer.t -> string -> int -> int -> unit
val add_sub_memory :
Netpagebuffer.t -> Netsys_mem.memory -> int -> int -> unit
val add_inplace :
Netpagebuffer.t -> (Netsys_mem.memory -> int -> int -> int) -> int
val page_for_additions : Netpagebuffer.t -> Netsys_mem.memory * int * int
val advance : Netpagebuffer.t -> int -> unit
val page_for_consumption : Netpagebuffer.t -> Netsys_mem.memory * int * int
val delete_hd : Netpagebuffer.t -> int -> unit
val clear : Netpagebuffer.t -> unit
val index_from : Netpagebuffer.t -> int -> char -> int
end`