ParaTest\Runners\PHPUnit\Runner::releaseToken PHP Method

    protected function releaseToken($tokenIdentifier)
    {
        $filtered = array_filter($this->tokens, function ($val) use($tokenIdentifier) {
            return $val['token'] === $tokenIdentifier;
        });
        $keys = array_keys($filtered);
        $this->tokens[$keys[0]]['available'] = true;
    }