/**
* @return WP_Term[]
*/
public function getAllTags()
{
if (!$this->_cache->containsKey('allTags')) {
$tags = $this->_wpFunctions->get_tags(array('hide_empty' => false));
$this->_cache->put('allTags', $tags);
}
return $this->_cache->get('allTags');
}
