`sig
type buf
val create : int -> CamomileLibrary.UText.Buf.buf
val contents : CamomileLibrary.UText.Buf.buf -> CamomileLibrary.UText.t
val contents_string :
CamomileLibrary.UText.Buf.buf -> CamomileLibrary.UText.ustring
val length : CamomileLibrary.UText.Buf.buf -> int
val clear : CamomileLibrary.UText.Buf.buf -> unit
val reset : CamomileLibrary.UText.Buf.buf -> unit
val add_char :
CamomileLibrary.UText.Buf.buf -> CamomileLibrary.UChar.t -> unit
val add_string :
CamomileLibrary.UText.Buf.buf -> 'a CamomileLibrary.UText.text -> unit
val add_buffer :
CamomileLibrary.UText.Buf.buf -> CamomileLibrary.UText.Buf.buf -> unit
end`