ref Исправление типов

src/Registry.php

@@ -34,6 +34,13 @@ class Registry {
         throw new Exception('Unknown key ' . $ns . '::' . $key);
     }
 
+    public function getOpt($ns, $key) {
+        if (isset($this->namespace[$ns]['data'][$key])) {
+            return $this->namespace[$ns]['data'][$key];
+        }
+        return null;
+    }
+
     public function has($ns, $key) {
         return isset($this->namespace[$ns]['data'][$key]);
     }