code: func (a *API) EnableExponentialBackoff() {
  	a.useExponentialBackoffmu.Lock()
  	a.useExponentialBackoff = true
  	a.useExponentialBackoffmu.Unlock()
  }
docs: // EnableExponentialBackoff enables use of exponential backoff for next API call(s)
  // and use exponential backoff for all API calls until exponential backoff is disabled.