input: Write a function to create a dictionary that maps each key from the input dictionary to its corresponding value. The function should return this new dictionary. The input dictionary is a mapping of fruit names to their quantities. If the input dictionary is empty, the function 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(input_dict):
      return input_dict