`sig
type buf = Buffer.t
val create : int -> CamomileLibrary.UTF8.Buf.buf
val contents : CamomileLibrary.UTF8.Buf.buf -> CamomileLibrary.UTF8.t
val clear : CamomileLibrary.UTF8.Buf.buf -> unit
val reset : CamomileLibrary.UTF8.Buf.buf -> unit
val add_char :
CamomileLibrary.UTF8.Buf.buf -> CamomileLibrary.UChar.t -> unit
val add_string :
CamomileLibrary.UTF8.Buf.buf -> CamomileLibrary.UTF8.t -> unit
val add_buffer :
CamomileLibrary.UTF8.Buf.buf -> CamomileLibrary.UTF8.Buf.buf -> unit
end`