code: public RemoteCall<TransactionReceipt> sendFunds(
              String toAddress, BigDecimal value, Convert.Unit unit) {
          return new RemoteCall<>(() -> send(toAddress, value, unit));
      }
docs: Execute the provided function as a transaction asynchronously. This is intended for one-off
  fund transfers. For multiple, create an instance.
  
  @param toAddress destination address
  @param value amount to send
  @param unit of specified send
  
  @return {@link RemoteCall} containing executing transaction