Rules not working

[keendule]

import { PdfReader } from 'pdfreader'; import { Rule } from 'pdfreader/Rule';

const processItem = Rule.makeItemProcessor([ Rule.on(/а/) .extractRegexpValues() .then((item) => console.log(item)), ]);

new PdfReader({}).parseFileItems('./pdf/1.pdf', (err, item) => { if (err) console.error('error:', err); else if (!item) console.warn('end of file'); else processItem(item); });

What i need to paste in then() ?