`method delay : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.readonly_prop`
`method endDelay : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.readonly_prop`
`method fill : Js_of_ocaml__.Js.js_string Js_of_ocaml__.Js.t Js_of_ocaml__.Js.readonly_prop`
`method iterationStart : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.readonly_prop`
`method iterations : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.readonly_prop`
`method duration : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.readonly_prop`

Duration in milliseconds. Computed timing always resolves the `"auto"` keyword to a number.

`method direction : Js_of_ocaml__.Js.js_string Js_of_ocaml__.Js.t Js_of_ocaml__.Js.readonly_prop`
`method easing : Js_of_ocaml__.Js.js_string Js_of_ocaml__.Js.t Js_of_ocaml__.Js.readonly_prop`
`method endTime : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.readonly_prop`
`method activeDuration : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.readonly_prop`
`method localTime : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.opt Js_of_ocaml__.Js.readonly_prop`
`method progress : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.opt Js_of_ocaml__.Js.readonly_prop`
`method currentIteration : Js_of_ocaml__.Js.number_t Js_of_ocaml__.Js.opt Js_of_ocaml__.Js.readonly_prop`