I have added two files to my React project: ndjson-stream-reader.js and usage.js. I got them from here: https://gist.github.com/ornicar/a097406810939cf7be1df8ea30e94f3e

They are supposed to import chess games from lichess, at least that is my interpretation of what it is meant to do..

When I run usage.js from a button using an onClick event, I get the following error:

TypeError: _library_ndjson_stream_reader__WEBPACK_IMPORTED_MODULE_6___default(...) is not a function

I have no idea of even where to begin with this. Any pointers on what I might be doing wrong?