input: 
  def random_password():
      """Generate a random password using a set of predefined characters.
      >>> random_password()
      'cF3$Bp7q'
      >>> random_password()
      '2wXz@Rt5'
      """
      import random 
      string = "abcdefghijklmnopqrstuvwxyz01234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%^&*()?"
      password = "".join(random.sample(string, 8))
      print(password)
  
output:     import random 
      string = "abcdefghijklmnopqrstuvwxyz01234567890ABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%^&*()?"
      password = "".join(random.sample(string, 8))
      return password