import "fmt"

$x1 = ["a", "b", "c", "d"]
print "print4" {
	msg => fmt.printf("length is: %d", len($x1)),
}

$x2 = {"a" => 1, "b" => 2, "c" => 3}
print "print3" {
	msg => fmt.printf("length is: %d", len($x2)),
}
