-- main.mcl --
$ints = [13, 42, 0, -37,]

$s1 = if contains(42, $ints) {
	"passed1"
} else {
	"failed"
}

$s2 = if contains(99, $ints) {
	"failed"
} else {
	"passed2"
}

$intlists = [
	[13, 99,],
	[42, 13,],
	[0,],
	[-37,],
]

$s3 = if contains([42, 13,], $intlists) {
	"passed3"
} else {
	"failed"
}

$s4 = if contains([42, 13, 0,], $intlists) {
	"failed"
} else {
	"passed4"
}

test "${s1}" {} # passed
test "${s2}" {} # passed
test "${s3}" {} # passed
test "${s4}" {} # passed
-- OUTPUT --
Vertex: test[passed1]
Vertex: test[passed2]
Vertex: test[passed3]
Vertex: test[passed4]