yii\twig\Extension::addUses PHP Method

    public function addUses($args)
    {
        foreach ((array) $args as $key => $value) {
            $value = str_replace('/', '\\', $value);
            if (is_int($key)) {
                // namespace or class import
                if (class_exists($value)) {
                    // class import
                    $this->aliases[StringHelper::basename($value)] = $value;
                } else {
                    // namespace
                    $this->namespaces[] = $value;
                }
            } else {
                // aliased class import
                $this->aliases[$key] = $value;
            }
        }
    }