code: func (d *DNSProvider) getZone(domain string) (*response, error) {
  	if d.config.AuthSid == "" {
  		return nil, fmt.Errorf("must be logged in to get zone")
  	}
  
  	return d.postRequest("dns-zone-get", url.Values{"domain": {dns01.UnFqdn(domain)}})
  }
docs: // getZone returns content of DNS zone for domain