Answer must be in Python.

In certain applications of the queue ADT, it is common to repeatedly dequeue an element, process it in some way, and then immediately enqueue the same element. Modify the ArrayQueue implementation to include a rotate( ) method that has semantics identical to the combination, Q.enqueue(Q.dequeue( )). However, your implementation should be more efficient than making two separate calls (for example, because there is no need to modify size).