input: Write a function to find the largest three numbers in a list. If there are less than three numbers in the list, return the largest numbers available.
  
  
  assert find_largest_three([1, 6, 3, 8, 7, 4]) == [6, 7, 8]
  assert find_largest_three([5, 10]) == [5, 10]
  assert find_largest_three([15, 3, 22, 1, 8]) == [15, 22, 8]
  assert find_largest_three([]) == []
  assert find_largest_three([12, 15, 17, 19, 20, 22]) == [19, 20, 22]
  
output: def find_largest_three(nums):
      if len(nums) < 3:
          return sorted(nums, reverse=True)
      return sorted(nums, reverse=True)[:3]