input: def generate_random_string(length: int) -> str:
      """ Generate a random string of specified length consisting of lowercase letters.
      >>> generate_random_string(6)
      'abcdef'  # Example output, actual output will be random
      >>> generate_random_string(3)
      'xyz'  # Example output, actual output will be random
      """
      import random
      import string
      letters = string.ascii_lowercase
      return ''.join(random.choice(letters) for _ in range(length))
output:     import random
      import string
      letters = string.ascii_lowercase
      return ''.join(random.choice(letters) for _ in range(length))