input: from typing import List
  
  def generate_6_digit_number() -> int:
      """Generate a random 6-digit number.
      >>> generate_6_digit_number()
      123456
      >>> generate_6_digit_number()
      789012
      """
      import random
      number = random.randint(100000, 999999)
      return number
output:     import random
      number = random.randint(100000, 999999)
      return number