input: import random
  import string
  
  def random_string(length: int) -> str:
      """ Generates a random string of the given length consisting of lowercase letters.
      >>> random_string(6)
      'abcdef'
      >>> random_string(6)
      'ghijkl'
      """
      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))