FluidXml\FluidInsertionHandler::attachNodes PHP Method

    protected function attachNodes($parent, $nodes, $fn)
    {
        if (!\is_array($nodes) && !$nodes instanceof \Traversable) {
            $nodes = [$nodes];
        }
        $context = [];
        foreach ($nodes as $el) {
            $el = $this->dom->importNode($el, true);
            $context[] = $fn($parent, $el);
        }
        return $context;
    }