import "fmt"

# this should be a regular polymorphic function
func add($x) {
	$x + $x
}

$num = 2
$out1 = add($num) # 4

test fmt.printf("%d + %d is %d", $num, $num, $out1) {} # simple math

$val = "hello"
$out2 = add($val) # hellohello

test fmt.printf("%s + %s is %s", $val, $val, $out2) {} # simple concat