renderNothing example

    public function dumpAll(array $vars, array $base): string
    {
        if (\array_keys($vars) !== \array_keys($base)) {
            throw new InvalidArgumentException('Kint::dumpAll requires arrays of identical size and keys as arguments');
        }

        $output = $this->renderer->preRender();

        if ([] === $vars) {
            $output .= $this->renderer->renderNothing();
        }

        foreach ($vars as $key => $arg) {
            if (!$base[$key] instanceof Value) {
                throw new InvalidArgumentException('Kint::dumpAll requires all elements of the second argument to be Value instances');
            }
            $output .= $this->dumpVar($arg, $base[$key]);
        }

        $output .= $this->renderer->postRender();