makeTransferTx method
Implementation
Future<Transaction> makeTransferTx(Address from, Address to, BigInt amount,
int gasPrice, int gasLimit, Address payer) async {
var b = TxBuilder();
var fn = 'transfer';
return b.makeInvokeTx(fn, [from, to, amount], contract,
gasPrice: gasPrice, gasLimit: gasLimit, payer: payer);
}