input: 
  class BankAccount:
      """
      A class to represent a bank account. It allows deposits, withdrawals, and balance checking.
  
      >>> account = BankAccount('John Doe', 1000)
      >>> account.deposit(500)
      >>> account.get_balance()
      1500
      >>> account.withdraw(2000)
      False
      >>> account.withdraw(750)
      True
      >>> account.get_balance()
      750
      """
      
      def __init__(self, name, balance):
          self.name = name
          self.balance = balance
          
      def deposit(self, amount):
          self.balance += amount
      
      def withdraw(self, amount):
          if self.balance >= amount:
              self.balance -= amount
              return True
          else:
              return False
          
      def get_balance(self):
          return self.balance
  
output:     def __str__(self):
          return f"Account holder: {self.name}, Balance: {self.balance}"