Mat .setTo() not working

I am currently trying to mask frame of a video using the setTo function. I have tried the following variations

```
bgFinal.setTo(255)

bgFinal.setTo(255 as number)

bgFinal.setTo(Number(JSON.stringify(255)))

bgFinal.setTo(255, bgMask)

bgFinal.setTo(new Vec3(255, 255, 255))

bgFinal.setTo(new Vec3(255, 255, 255), bgMask)
```

And i get the following error:

`ERROR Error: Could not call remote method 'setTo'. Check that the method signature is correct. Underlying error: undefined
Underlying stack: undefined

at electron/js2c/browser_init.js:6734
at EventEmitter. (electron/js2c/browser_init.js:6585)
at EventEmitter.emit (events.js:203)
at WebContents. (electron/js2c/browser_init.js:3904)
at WebContents.emit (events.js:203)`

I am using Angular + Typescript + Electron. Any help with the syntax of this would be much appreciated.

Start at the setTo entry point and inspect its accepted arguments, reproducing the call in the reported Angular, TypeScript, and Electron setup. Done means the supported invocation is identified and the masked frame is updated without the reported remote-method error.

Written by the indexing model from the issue text.