Dom_html.timeRanges
method length : int Js_of_ocaml__.Js.readonly_prop
method start : int -> Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.meth
method end_ : int -> Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.meth