How to save and load cookies in Puppeteer?

const puppeteer = require('puppeteer');
const fs = require('fs').promises;

async function run() {
    const browser = await puppeteer.launch();
    const page = await browser.newPage();

    // get some cookies:
    await page.goto("https://httpbin.dev/cookies/set/mycookie/myvalue");
    // then we can save them as JSON file:
    const cookies = await page.cookies();
    await fs.writeFile('cookies.json', JSON.stringify(cookies));

    // then later, we load the cookies from file:
    const cookies = JSON.parse(await fs.readFile('./cookies.json'));
    await page.setCookie(...cookies);
    await page.goto("https://httpbin.dev/cookies");

    console.log(await page.content())
    browser.close();
}

run();