Write a recursive function named is_decreasing that takes as its parameter a list of numbers. It should return True if the elements of the list are strictly decreasing (each element in the array is strictly less than the previous one), but return False otherwise. You can assume the array contains at least two elements.
You are free to use a helper function if desired, meaning that you can write a function that takes the specified parameters and have it call your recursive function with any additional parameters it needs.
The file must be named: is_decreasing. py