Write a function named reverse_by_three that receives a numpy array, python list, or tuple as an input argument. Starting at the 2nd from last element, returns every 3rd element of the list in reverse order. It is legal to return an empty python list, numpy array, or tuple if the input is empty. Use slicing syntax exclusively to perform the operations. Your code should be efficient as possible and not use a lot of extraneous un-needed code in the solution.