input: def simulate_atm(transactions: List[dict]) -> None:
      """ Simulate the operations of a simple ATM machine. The input consists of a list of transactions, where each
      transaction is a dictionary that indicates the operation to be performed and the necessary information to perform
      the operation. The possible operations are: 'create_account', 'deposit', 'withdrawal', and 'print_balance'.
      For 'create_account', the dictionary should have 'name' and 'balance' keys. For 'deposit' and 'withdrawal', the
      dictionary should have 'name' and 'amount' keys. For 'print_balance', the dictionary should only have 'name' key.
      The function should print the balance of any account that has its balance printed according to the transactions list.
      >>> simulate_atm([{'operation': 'create_account', 'name': 'John', 'balance': 100.0}, {'operation': 'deposit', 'name': 'John', 'amount': 50.0}, {'operation': 'withdrawal', 'name': 'John', 'amount': 20.0}, {'operation': 'print_balance', 'name': 'John'}])
      John Balance: 130.0
      >>> simulate_atm([{'operation': 'create_account', 'name': 'Alice', 'balance': 0.0}, {'operation': 'print_balance', 'name': 'Alice'}])
      Alice Balance: 0.0
      """
      atm = ATM()
      for transaction in transactions:
          if transaction['operation'] == 'create_account':
              atm.createAccount(transaction['name'], transaction['balance'])
          elif transaction['operation'] == 'deposit':
              atm.deposit(transaction['name'], transaction['amount'])
          elif transaction['operation'] == 'withdrawal':
              atm.withdrawal(transaction['name'], transaction['amount'])
          elif transaction['operation'] == 'print_balance':
              atm.printBalance(transaction['name'])
output:     class ATM:
          def __init__(self):
              self.accounts = {}
          
          def createAccount(self, name, balance):
              self.accounts[name] = balance
          
          def deposit(self, name, amount):
              if name in self.accounts:
                  self.accounts[name] += amount
          
          def withdrawal(self, name, amount):
              if name in self.accounts:
                  self.accounts[name] -= amount
          
          def printBalance(self, name):
              if name in self.accounts:
                  print(f"{name} Balance: {self.accounts[name]}")