code: func (d *DNSProvider) Present(domain, token, keyAuth string) error {
  	fqdn, value := dns01.GetRecord(domain, keyAuth)
  	record := dns01.UnFqdn(fqdn)
  
  	u, err := d.buildQuery(cmdAddRecord, record, value)
  	if err != nil {
  		return fmt.Errorf("dreamhost: %v", err)
  	}
  
  	err = d.updateTxtRecord(u)
  	if err != nil {
  		return fmt.Errorf("dreamhost: %v", err)
  	}
  	return nil
  }
docs: // Present creates a TXT record to fulfill the dns-01 challenge.