Class type IntersectionObserver.intersectionObserverOptions

method root : Js_of_ocaml__.Dom.node Js_of_ocaml__.Js.t Js_of_ocaml__.Js.writeonly_prop
method rootMargin : Js_of_ocaml__.Js.js_string Js_of_ocaml__.Js.t Js_of_ocaml__.Js.writeonly_prop
method threshold : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.js_array Js_of_ocaml__.Js.t Js_of_ocaml__.Js.writeonly_prop