`sig
type buf
val create : int -> CamomileLibrary.Type.XString.Buf.buf
val contents :
CamomileLibrary.Type.XString.Buf.buf -> CamomileLibrary.Type.XString.t
val length : CamomileLibrary.Type.XString.Buf.buf -> int
val clear : CamomileLibrary.Type.XString.Buf.buf -> unit
val reset : CamomileLibrary.Type.XString.Buf.buf -> unit
val add_char :
CamomileLibrary.Type.XString.Buf.buf ->
CamomileLibrary.Type.UChar.t -> unit
val add_string :
CamomileLibrary.Type.XString.Buf.buf ->
CamomileLibrary.Type.XString.t -> unit
val add_buffer :
CamomileLibrary.Type.XString.Buf.buf ->
CamomileLibrary.Type.XString.Buf.buf -> unit
end`