# Cache file existence or non-existence
if ( $useCache && ( !$image || $image->isCacheable() ) ) {
$this->cache->set( $dbkey, $time, $image );
# Cache file existence or non-existence
if ( $useCache && ( !$image || $image->isCacheable() ) ) {
$this->cache->set( $dbkey, $time, $image );