| public ensureEdge ( object $u, object $v ) : Gliph\Graph\MutableGraph | ||
| $u | object | One object vertex in the edge pair. The vertex will be added to the graph if it is not already present. |
| $v | object | The other object vertex in the edge pair. The vertex will be added to the graph if it is not already present. |
| return | Gliph\Graph\MutableGraph | The current graph instance. |
public function ensureEdge($u, $v);