input: 
  from typing import List
  import random
  import string
  
  def generate_random_string(length: int) -> str:
      """ Generate a random string of the given length, consisting of lowercase letters.
      >>> generate_random_string(6)  # Example output: 'abcxyz'
      'abcxyz'
      """
      letters = string.ascii_lowercase
      return ''.join(random.choice(letters) for i in range(length))
  
output:     letters = string.ascii_lowercase
      return ''.join(random.choice(letters) for i in range(length))