Available on js
@:value(cast "disabled")@:enum@:implinlineread onlyDISABLED:TextTrackMode = "disabled"
@:value(cast "hidden")@:enum@:implinlineread onlyHIDDEN:TextTrackMode = "hidden"
@:value(cast "showing")@:enum@:implinlineread onlySHOWING:TextTrackMode = "showing"