public function import(array $loader)
    {
        $this->loader = $loader;
        foreach ($loader as $alias => $namespace) {
            $alias = $this->alias($alias);
            $this->container->set($alias, function ($c) use ($alias, $namespace) {
                if (is_callable([$namespace, 'make'])) {
                    call_user_func_array($namespace . '::make', [$alias, $c]);
                }

                return new $namespace();
            });
        }
    }