Nelmio\Alice\FixtureBuilder\Denormalizer\FlagParser\Chainable\OptionalFlagParser::parse PHP Method

    public function parse(string $element) : FlagBag
    {
        $matches = [];
        $this->canParse($element, $matches);
        $percentage = (int) $matches['percentage'];
        return (new FlagBag(''))->withFlag(new OptionalFlag($percentage));
    }