input: Write a python function to find unique items from a list.
  assert find_unique_items([2, 3, 3, 4, 4, 5, 6, 7, 7]) == [2, 3, 4, 5, 6, 7]
  assert find_unique_items([1, 1, 2, 2, 3, 3, 4, 4]) == [1, 2, 3, 4]
  assert find_unique_items([10, 20, 20, 30, 40, 40, 50]) == [10, 20, 30, 40, 50]
output: def find_unique_items(lst):
      return list(set(lst))