user=> (take-last 2 [1 2 3 4]) (3 4) user=> (take-last 2 [4]) (4) user=> (take-last 2 []) nil user=> (take-last 2 nil) nil
user=> (take-last 2 [1 2 3 4]) (3 4) user=> (take-last 2 [4]) (4) user=> (take-last 2 []) nil user=> (take-last 2 nil) nil
user=> (take-last 2 [1 2 3 4]) (3 4)
user> (take-last 2 [1 2 3 4]) (3 4)