input: from typing import List
  
  
  def find_largest_three_numbers(numbers: List[int]) -> List[int]:
      """ Find the largest three numbers in a given list of integers.
      >>> find_largest_three_numbers([1, 6, 3, 8, 7, 4])
      [6, 7, 8]
      """
output:     numbers.sort()
      return numbers[-3:]