src/Filter/Setting/WithChildren.php
public function getReferencedAttributes()
    {
        $arrAttributes = array();
        foreach ($this->arrChildren as $objSetting) {
            $arrAttributes = array_merge($arrAttributes, $objSetting->getReferencedAttributes());
        }
        return $arrAttributes;
    }
public function getReferencedAttributes()
    {
        $arrAttributes = array();
        foreach ($this->arrChildren as $objSetting) {
            $arrAttributes = array_merge($arrAttributes, $objSetting->getReferencedAttributes());
        }
        return $arrAttributes;
    }
Retrieve a list of all referenced attributes within the filter setting.

@return array