input: 
  def generate_random_6_digit_number() -> int:
      """ Generates a random 6-digit number.
      >>> generate_random_6_digit_number()
      123456
      >>> generate_random_6_digit_number()
      987654
      """
      import random
      return random.randint(100000, 999999)
  
output:     import random
      return random.randint(100000, 999999)