canSpendUTXO method
Check if UTXO can be spent (business rules)
Implementation
bool canSpendUTXO(WalletState state, String utxoKey) => UtxoLedger.isAvailable(state, utxoKey);
Check if UTXO can be spent (business rules)
bool canSpendUTXO(WalletState state, String utxoKey) => UtxoLedger.isAvailable(state, utxoKey);