https://v4-1-5-dot-shaka-player-demo.appspot.com/docs/api/shaka.media.PlayRateController.html
JSDoc: Class: shaka.media.PlayRateController
jsdocclassshakamedia
https://v3-3-12-dot-shaka-player-demo.appspot.com/docs/api/shaka.media.PlayRateController.html
JSDoc: Class: shaka.media.PlayRateController
jsdocclassshakamedia