private function getExcludedFilter(array $filters, array $propertyParameter)
    {
        $excluded = array_key_exists('excluded', $filters) ? $filters['excluded'] : [];
        if (array_key_exists('exclude_duplicates', $propertyParameter)
            && $propertyParameter['exclude_duplicates']->getValue()
        ) {
            $excluded = array_merge($excluded, $this->referenceStore->getAll());
        }

        return $excluded;
    }