input: def generate_password():
      """Generate a random password consisting of a string of 8 characters (numbers, letters, and special characters).
      >>> generate_password()
      '&4hj%$z7'
      """
      import random
      import string
      password_characters = string.ascii_letters + string.digits + string.punctuation
      password = ''.join(random.choice(password_characters) for i in range(8))
      print(password)
output:     return password