class-string-wrong * @param class-string-wrong[] * @param class-string-wrong[][] * @param class-string * @param class-string[] * @param class-string[][] * @param numeric * @param numeric-string * @param lowercase-string * @param non-empty-lowercase-string * @param truthy-string * @param non-falsy-string * @param callable-string * @param callable-string * @param scalar */ function f() { echo 'Hello World!'; }