syntax error, unexpected ')' in - on line 253 Errors parsing pwa_webpush.module

syntax error, unexpected ')' in - on line 253

Errors parsing pwa_webpush.module

I think this is because there is a trailing "," in the function call arguments.

This is a PHP 7.3+ feature so it should be noted on the project page (already states 7.2)

Or just remove the trailing comma, seems to be the only occurrence.