Playback button canvas

[cViennaCL]

Hi, Sorry i have one question. It is about the master-reveal js (not Angular version with module) and the question, Class U i tried to get Access with prototype, please has somebody a Solution how i get access to that class, to use it from a jquery file?
i tried with the keyword "new" like "const newCanvas = new U(()" and please if somebody has a great solution to get access on that class U with the methods render, setPlaying...

I want also when it is one slide, that i render the playback button. Later with if condition when Reveal.getSlides().length == 1 && ...video than i will call the function setPlaying...

Greets :)