Class type PerformanceObserver.performanceEntry
method name : Js_of_ocaml__Js.js_string Js_of_ocaml__Js.t Js_of_ocaml__Js.readonly_prop
method entryType : Js_of_ocaml__Js.js_string Js_of_ocaml__Js.t Js_of_ocaml__Js.readonly_prop
method startTime : float Js_of_ocaml__Js.readonly_prop
method duration : float Js_of_ocaml__Js.readonly_prop