const { isolateData, req } = require('./_setup');
isolateData('upd');
const ytdlp = req('src/youtube/ytdlp');
const a = ytdlp.update({ reason: 'test' }), b = ytdlp.update();
a.then(r => console.log('single-flight:', a === b, JSON.stringify({ ok: r.ok, updatable: r.updatable, before: r.before, after: r.after, message: r.message })));