Class type DateTimeFormat.format_part
method _type : Js_of_ocaml.Js.js_string Js_of_ocaml.Js.t Js_of_ocaml.Js.readonly_propmethod _value : Js_of_ocaml.Js.js_string Js_of_ocaml.Js.t Js_of_ocaml.Js.readonly_prop
DateTimeFormat.format_partmethod _type : Js_of_ocaml.Js.js_string Js_of_ocaml.Js.t Js_of_ocaml.Js.readonly_propmethod _value : Js_of_ocaml.Js.js_string Js_of_ocaml.Js.t Js_of_ocaml.Js.readonly_prop