<?php
$folder = implode(DIRECTORY_SEPARATOR, [
    __DIR__,
    'tipos'
]);
if (file_exists($folder)) {
    $app->group('/tipos', function($app) use ($folder) {
        $files = new DirectoryIterator($folder);
        foreach ($files as $file) {
            if ($file->isDir() or $file->getExtension() != 'php') {
                continue;
            }
            include_once $file->getRealPath();
        }
    });
}