// Own namespace
namespace CoreFramework\Filter\Validator\Username;
+// Import framework stuff
+use CoreFramework\Filter\BaseFilter;
+use CoreFramework\Registry\Registry;
+use CoreFramework\Request\Requestable;
+use CoreFramework\Response\Responseable;
+
/**
* A concrete filter for validating the username. This filter may intercept the
* filter chain if no username is given or if supplied username has an invalid