routes with namespace & filter not work proper

Not 100% sure, but as far as I understand the documentation your filter and namespace options should be an array

PHP Code:

$routes->get("dashboard", "DashboardController::index", ["namespace" => "\Modules\dashboard\Controllers\Admin","filter" => "auth"]); 


Now, It's working. 
Thank You

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The last parameter to the routes is an $options array this is an associated array to hold all options to the route,
like namespace and filter

[namespace => name, filter => your_filter]

Now, It's working. 
Thank You