public function increase(int $size)
	{
		$count = $this->count();
		if ($size > $this->count()) {
			$add = $size - $this->count();
			$key = $this->storeKey();
			for ($i = 0; $i < $add; $i++) {
				$this->addEmpty();
			}
		}

		return $this;
	}