input: Write a function to generate a random password of 8 characters consisting of numbers, letters, and special characters. The function should return the generated password as a string.
  def generate_password():
   password_characters = string.ascii_letters + string.digits + string.punctuation
   password = ''.join(random.choice(password_characters) for i in range(8))
   return password
  
  assert len(generate_password())==8
  assert any(c.isdigit() for c in generate_password())==True
  assert any(c.isalpha() for c in generate_password())==True
  assert any(c in string.punctuation for c in generate_password())==True
output: def generate_password():
   password_characters = string.ascii_letters + string.digits + string.punctuation
   password = ''.join(random.choice(password_characters) for i in range(8))
   return password