input: Write a function to determine if it is possible to create a BankAccount class in Python by defining an `__init__` method to initialize the account with a name and initial balance, a `deposit` method to add money to the account, a `withdraw` method to subtract money from the account if sufficient funds are available, and a `get_balance` method to return the current balance. The function should return True if all methods are correctly defined and implemented, otherwise return False. The function should accept a dictionary that maps method names to their respective implementations in Python code.
  
  assert check_bank_account({'__init__': 'def __init__(self, name, balance): self.name = name; self.balance = balance', 'deposit': 'def deposit(self, amount): self.balance += amount', 'withdraw': 'def withdraw(self, amount): if self.balance >= amount: self.balance -= amount; return True; else: return False', 'get_balance': 'def get_balance(self): return self.balance'})==True
  assert check_bank_account({'__init__': 'def __init__(self): pass', 'deposit': 'def deposit(self, amount): self.balance += amount', 'withdraw': 'def withdraw(self, amount): if self.balance >= amount: self.balance -= amount; return True; else: return False', 'get_balance': 'def get_balance(self): return self.balance'})==False
  assert check_bank_account({'__init__': 'def __init__(self, name, balance): self.name = name; self.balance = balance', 'deposit': 'def deposit(self, amount): self.balance += amount', 'withdraw': 'def withdraw(self, amount): if self.balance > amount: self.balance -= amount; return True; else: return False', 'get_balance': 'def get_balance(self): return self.balance'})==False
  assert check_bank_account({'__init__': 'def __init__(self, name, balance): self.name = name; self.balance = balance', 'deposit': 'def deposit(self, amount): self.balance += amount', 'withdraw': 'def withdraw(self, amount): if self.balance >= amount: self.balance -= amount; return True; else: return False', 'get_balance': 'def get_balance(self): return balance'})==False
  assert check_bank_account({})==False
output: def check_bank_account(methods):
      if not all(method in methods for method in ['__init__', 'deposit', 'withdraw', 'get_balance']):
          return False
      
      try:
          exec(methods['__init__'])
          exec(methods['deposit'])
          exec(methods['withdraw'])
          exec(methods['get_balance'])
          
          class BankAccount:
              def __init__(self, name, balance):
                  exec(methods['__init__'])
              def deposit(self, amount):
                  exec(methods['deposit'])
              def withdraw(self, amount):
                  exec(methods['withdraw'])
              def get_balance(self):
                  exec(methods['get_balance'])
          
          account = BankAccount("Test", 100)
          account.deposit(50)
          if account.get_balance() != 150:
              return False
          if not account.withdraw(50):
              return False
          if account.get_balance() != 100:
              return False
          if account.withdraw(200):
              return False
          if account.get_balance() != 100:
              return False
          
          return True
      except:
          return False