class X<of T>

	def foo(args as vari int) as int
		sum = 0
		for arg in args, sum += arg
		return sum

	get [args as vari int] as int
		sum = 0
		for arg in args, sum += arg
		return sum

class P

	def main
		x = X<of int>()
		assert x.foo(3) == 3
		assert x.foo(3, 5) == 8
		assert x[3] == 3
		assert x[3, 5] == 8