PhpParser\PrettyPrinter\Standard::pEncapsList PHP Method

    protected function pEncapsList(array $encapsList, $quote) {
        $return = '';
        foreach ($encapsList as $element) {
            if ($element instanceof Scalar\EncapsedStringPart) {
                $return .= $this->escapeString($element->value, $quote);
            } else {
                $return .= '{' . $this->p($element) . '}';
            }
        }

        return $return;
    }