input: def generate_password():
      """Generates a random password consisting of 8 characters that include numbers, 
      letters, and special characters.
      >>> generate_password()
      'A3b!9d@Z'
      >>> generate_password()
      '12*Xy#7Q'
      """
output:     import random
      import string
  
      characters = string.ascii_letters + string.digits + string.punctuation
      password = ''.join(random.choice(characters) for _ in range(8))
      return password