performanceObserver (js_of_ocaml.Js_of_ocaml.PerformanceObserver.performanceObserver)

method observe : performanceObserverInit Js_of_ocaml__.Js.t ->
  unit Js_of_ocaml__.Js.meth

method disconnect : unit Js_of_ocaml__.Js.meth

method takeRecords : performanceEntry Js_of_ocaml__.Js.t
                       Js_of_ocaml__.Js.js_array
                       Js_of_ocaml__.Js.t
                       Js_of_ocaml__.Js.meth