generate new test that did already exist & update all module snippets with declaration

test/maxN/maxN.js

@@ -1 +1 @@
-module.exports = (arr, n = 1) => [...arr].sort((a, b) => b - a).slice(0, n);
+module.exports = maxN = (arr, n = 1) => [...arr].sort((a, b) => b - a).slice(0, n);