docs: public SendRequest getSendRequest() {
          Transaction tx = new Transaction(params);
          for (Protos.Output output : paymentDetails.getOutputsList())
              tx.addOutput(new TransactionOutput(params, tx, Coin.valueOf(output.getAmount()), output.getScript().toByteArray()));
          return SendRequest.forTx(tx).fromPaymentDetails(paymentDetails);
      }