In Python

3. ( 8 points) Suppose you have an inventory of LEGO parts, and you want to determine if you have the right parts to build a certain goal model. Write a function get missing-parts (goal, inventory) that returns a dictionary containing all extra parts that need to be added to inventory to build the goal. If no extra parts are needed (i.e., if goal is a multisubset of inventory), the function returns an empty dictionary. You may assume that goal and inventory are dictionaries as described earlier. The returned dictionary should be built the same way