Write the code using python

Updating a Dictionary When working with lists, you probably noticed that you can change the value at a given index with a simple assignment statement. So, for example, the following code replaces the first element of 1st with 42: 1st 0]-42 You can update the value for a given key in a dictionary in the same way. The general syntax for this is: d[key value This is also how you insert new key/value pairs to a dictionary, if the key does not exist, it will be added. Write a function add to_dict(d, key value_pairs) which adds each given key/value pair to the given dictionary. The argument key_value pairs will be a list of tuples in the form (key, value) The function should return a list of all of the key/value pairs which have changed (with their original values)