-- main.mcl --
import "fmt"

$map1 = {0 => "a", 1 => "b", 2 => "c",}
$map2 = {0 => "x", 1 => "y", 2 => "z",}

$word = "hello"

forkv $key1, $val1 in $map1 {
	forkv $key2, $val2 in $map2 {

		class foo($x, $y) {
			$result = "hello " + $x + $y + $val1 + $val2
			$result1 = $x + $val1
			$result2 = $y + $val2
		}
		include foo($val1, $val2) as included

		$s = fmt.printf("%s is {%d,%d}", $included.result, $key1, $key2)
		$s1 = fmt.printf("one: %s", $included.result1)
		$s2 = fmt.printf("two: %s", $included.result2)
		test [$s, $s1, $s2,] {}
	}
}

-- OUTPUT --
Vertex: test[hello axax is {0,0}]
Vertex: test[hello ayay is {0,1}]
Vertex: test[hello azaz is {0,2}]
Vertex: test[hello bxbx is {1,0}]
Vertex: test[hello byby is {1,1}]
Vertex: test[hello bzbz is {1,2}]
Vertex: test[hello cxcx is {2,0}]
Vertex: test[hello cycy is {2,1}]
Vertex: test[hello czcz is {2,2}]
Vertex: test[one: aa]
Vertex: test[one: bb]
Vertex: test[one: cc]
Vertex: test[two: xx]
Vertex: test[two: yy]
Vertex: test[two: zz]