input: from typing import List
  
  def generate_random_password() -> str:
      """Generate a random password using a fixed set of characters. The password 
      should be 8 characters long and include a mix of lowercase letters, uppercase 
      letters, numbers, and special characters.
      
      >>> generate_random_password()
      'aB3$cD7!'
      >>> generate_random_password()
      '1@2#eFgH'
      """
output:     import random
      import string
  
      characters = string.ascii_letters + string.digits + string.punctuation
      password = ''.join(random.choice(characters) for _ in range(8))
      return password