-- main.mcl --
$name = ["a", "bb", "ccc",]
test $name {}
test "test" {}

Test["test"] -> Test[$name]      # must pass
#Test["test"] -> Test["${name}"] # must fail

-- OUTPUT --
Edge: test[test] -> test[a] # test[test] -> test[a]
Edge: test[test] -> test[bb] # test[test] -> test[bb]
Edge: test[test] -> test[ccc] # test[test] -> test[ccc]
Vertex: test[a]
Vertex: test[bb]
Vertex: test[ccc]
Vertex: test[test]