Utxo constructor
Implementation
factory Utxo({
$core.String? txId,
$fixnum.Int64? index,
$core.String? balance,
$core.bool? spent,
}) {
final result = create();
if (txId != null) result.txId = txId;
if (index != null) result.index = index;
if (balance != null) result.balance = balance;
if (spent != null) result.spent = spent;
return result;
}