input: Write a function item_counts that takes a dictionary fruits as an argument and returns a new dictionary with the same keys and values as the input dictionary, effectively counting the occurrences of each item. If the input dictionary is empty, it should return an empty dictionary.
  
  assert item_counts({"apples": 5, "oranges": 6, "bananas": 7})=={"apples": 5, "oranges": 6, "bananas": 7}
  assert item_counts({})=={}
output: def item_counts(fruits):
      return fruits