public function parse($line)
    {
        $elements = [];

        // 1. remove braces
        $line = \str_replace(['{', '}'], '', $line);

        // 2. extract elements
        $elements = $this->extractElements($line);

        // 3. remove quotes
        $iterator = function($element)
        {
            return \str_replace(['\'', '"'], '', $element);
        };

        return \array_map($iterator, $elements);
    }