Filter's dont work

PHP Code:

$routes->options('companies/(.+)', 'Options::index');
$routes->group('companies', ['filter' => 'bearer-auth:comp'], function($routes) {
    $routes->get('proctors', 'Companies::proctors');
    $routes->get('findusers', 'Companies::find_users_to_link');
    $routes->post('link', 'Companies::post_link');
    $routes->post('linkmanage', 'Companies::post_linkmanage');
    $routes->get('(:segment)/employees', 'Companies::get_employees/$1');
    $routes->delete('(:segment)/employees', 'Companies::delete_employees/$1');
});
$routes->resource('companies', ['controller' => 'Companies', 'filter' => 'bearer-auth:comp']); 


Can you explain the first and last row ?