PluralRules.options
method localeMatcher : Js_of_ocaml__Js.js_string Js_of_ocaml__Js.t Js_of_ocaml__Js.prop
method _type : Js_of_ocaml__Js.js_string Js_of_ocaml__Js.t Js_of_ocaml__Js.prop