input: Write a function to find the largest three numbers in a given list. The function should return these numbers in a list sorted in descending order. If the list has less than three numbers, the function should return the numbers in the list sorted in descending order.
  assert find_largest_three([1, 6, 3, 8, 7, 4])==[8, 7, 6]
  assert find_largest_three([4, 3, 1])==[4, 3, 1]
  assert find_largest_three([5, 10])==[10, 5]
  assert find_largest_three([7])==[7]
  assert find_largest_three([])==[]
output: def find_largest_three(nums):
      return sorted(nums, reverse=True)[:3]