inherit ['a, Js_of_ocaml__.Js.js_string Js_of_ocaml__.Js.t]
Js_of_ocaml__.Dom_html.messageEvent
method data_buffer : Js_of_ocaml__.Typed_array.arrayBuffer Js_of_ocaml__.Js.t
Js_of_ocaml__.Js.readonly_propmethod data_blob : Js_of_ocaml__.File.blob Js_of_ocaml__.Js.t
Js_of_ocaml__.Js.readonly_prop