Actors in Swift

// Actor definition
actor BankAccount {
    private var balance: Double = 0

    func deposit(amount: Double) {
        balance += amount
    }

    func withdraw(amount: Double) -> Bool {
        guard balance >= amount else {
            return false
        }
        balance -= amount
        return true
    }

    func getBalance() -> Double {
        return balance
    }
}

// Using actors
let account = BankAccount()

Task {
    await account.deposit(amount: 100)
    let success = await account.withdraw(amount: 50)
    let balance = await account.getBalance()
    print("Balance: \(balance)")
}