Class type Form.formData

method append : Js_of_ocaml__Js.js_string Js_of_ocaml__Js.t -> Js_of_ocaml__Js.js_string Js_of_ocaml__Js.t -> unit Js_of_ocaml__Js.meth
method append_blob : Js_of_ocaml__Js.js_string Js_of_ocaml__Js.t -> Js_of_ocaml__File.blob Js_of_ocaml__Js.t -> unit Js_of_ocaml__Js.meth