Fixing the generator as discuss in the testing meeting.
Fixing the generator as discuss in the testing meeting.

beni55/web-animations-js-legacy,beni55/web-animations-js-legacy,birtles/web-animations-js,web-animations/web-animations-js-legacy,beni55/web-animations-js-legacy,web-animations/web-animations-js-legacy,birtles/web-animations-js,birtles/web-animations-js,web-animations/web-animations-js-legacy,beni55/web-animations-js-legacy