input: Write a function that takes a list of items as input and prints each item using a dictionary. The dictionary should map each item to its corresponding string representation. If the list is empty, print nothing.
  assert print_items_dict([1, 2, 3, 4])==None
  assert print_items_dict([5, 6, 7, 8])==None
  assert print_items_dict([])==None
output: def print_items_dict(items):
      if items:
          item_dict = {item: str(item) for item in items}
          for key, value in item_dict.items():
              print(f"{key}: {value}")