code: func PostCheque(db *reform.DB, channel string,
  	pscAddr data.HexString, pass string, amount uint64,
  	tls bool, timeout uint, pr *proc.Processor) error {
  	pld, err := newPayload(db, channel, pscAddr, pass, amount)
  	if err != nil {
  		return err
  	}
  	return postPayload(db, channel, pld, tls, timeout, pr, srv.Send)
  }
docs: // PostCheque sends a payment cheque to a payment server.