#testmode:repl

l = (1,)
l.push(2)
l.push((3, 4))

list_push((1,2,3), 99, 1)
list_push((1,2,3), 99, 4)

#---

#(1, 2)
#(1, 2, (3, 4))
#(1, 99, 2, 3)
#ERR:Line 1, column 1: list_push() provided index 4 out of range in list sized 3