/**
* @param Resource|Graph $resourceOrGraph
* @param array $frame
*
* @return Graph
*/
public function getGraph($resourceOrGraph, $frame = null)
{
if ($resourceOrGraph instanceof Graph) {
return $resourceOrGraph;
}
return $resourceOrGraph->getGraph();
}
/**
* @return int|void
*/
public function delete($property, $value = null)
{
$this->snapshot();
$out = parent::delete($property, $value);
return $out;
}