Pinq\Tests\Integration\Collection\ApplyTest::arraysOfString PHP Method

    public function arraysOfString()
    {
        return $this->getImplementations([['d', 'b', 'q', 'l'], ['a', 'c', 'd', 'a'], ['d', 'd', 'f', 'q'], ['t', 'a', 'v', 'm']]);
    }