Controller/SearchControllerTrait.php
protected function getSearchFacets(SessionInterface $session) {
		$facets = $session->get($this->getSessionPrefix() . '_facets', false);
		return $facets ? \json_decode($facets, true) : $this->getDefaultFacets();
	}
protected function getSearchFacets(SessionInterface $session) {
		$facets = $session->get($this->getSessionPrefix() . '_facets', false);
		return $facets ? \json_decode($facets, true) : $this->getDefaultFacets();
	}
Fetches the searched facets from the session object

@param SessionInterface $session
@return string[string][]