react-diff-view: TypeError when trying to use `tokenize()` to highlight code

Hi,

I am not sure how much information I can provide but I am not able to make the syntax highlighting work with the version 2.0 of this lib. I use tokenize() and the following options:

    const options = {
      highlight: true,
      language: 'js',
      refractor: refractor,
    };

refractor is imported via:

import refractor from 'refractor';

Simply logging the result of tokenize() fails:

console.log({ tokens: tokenize(hunks, options) });

If I set highlight to false in options, I get the tokens, but with highlighting enabled, I also get a TypeError:

i is not a function

Because I use the npm package, I don’t have more information. I tried to debug and I know that it works until after this line: https://github.com/otakustay/react-diff-view/blob/6aa5399c52392e19f7f8fbe4af17b374b4339862/src/tokenize/index.js#L15. The toTokenTrees returns similar results with highlight set to true or false.

I am hoping that you might have ideas. 🤞

Thanks!