How make custom props when got.extend?

[loss-and-quick]

For example(taken from hooman):

const instance = got.extend({
  cookieJar,
  retry: {
    limit: 2,
    statusCodes: [408, 413, 429, 500, 502, 504, 521, 522, 524],
  }, 
  cloudflareRetry: 5, 
  notFoundRetry: 1, 
  captchaRetry: 1
  onCaptcha: null, 
  captchaKey: process.env.HOOMAN_CAPTCHA_KEY,
  rucaptcha: process.env.HOOMAN_RUCAPTCHA
}

So i got an error: Unexpected option: cloudflareRetry