1. Please expalin solution/code, Please use python and show test cases

Specification The first function you will write should be called countDown. Your function should take zero (0) arguments The function should return one (1) list containing integers from 10 to 1 and finally, the string Liftoff!". (ie, [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 'Liftoff!') You function must be recursive (i.e., it should contain a call to itself within the function body). You will get NO credit if you use any loops (for, while, etc)