input: Write a function to generate a random password consisting of 8 characters, including numbers, letters, and special characters. If no input is provided, the function should print the randomly generated password.
  def generate_password():
   password_characters = string.ascii_letters + string.digits + string.punctuation
   password = ''.join(random.choice(password_characters) for i in range(8))
   print(password)
  
  assert generate_password() != generate_password()
  # Expected output: Each call should print a different 8-character password.
  assert len(generate_password()) == 8
  # Expected output: The length of the generated password should be 8.
output: def generate_password():
   password_characters = string.ascii_letters + string.digits + string.punctuation
   password = ''.join(random.choice(password_characters) for i in range(8))
   print(password)