Coding Problem $(*)$

Create a Python function named mdp$\_$policy$\_$enumerate to enumerate all the possible stationary policies

in a MDP$.$ The detailed requirements are listed as follows.

Two inputs: $S,$ set of states; $A,$ set of actions.

Output: a list that contains all the policies.

Test the function using the states and actions from the machine repair example.

Packages and functions you may need to use $($click will lead you to the webpages$)$:

itertools.product

Note: adding comment in each line of code will receive one extra point given that code runs correctly.