public function setDefaultSort($sort, $use_on_reset = true)
	{
		if (is_string($sort)) {
			$sort = [$sort => 'ASC'];
		} else {
			$sort = (array) $sort;
		}

		$this->default_sort = $sort;
		$this->default_sort_use_on_reset = (bool) $use_on_reset;

		return $this;
	}