-- main.mcl --
import "fmt"

$map = 55
$fn = func($in) { # in is a special keyword
	13
}
test fmt.printf("%d", $fn(0)) {}
func fn($in) { # in is a special keyword
	42 + $map
}
test fmt.printf("%d", $fn(0)) {}
test fmt.printf("%d", fn(0)) {}
-- OUTPUT --
Vertex: test[13]
Vertex: test[97]