def _get_har(self, request=None):
        if request is None:
            request = self.sender().request()
        return self._get_webpage_attribute(request, "har")
Compute shortest path lengths in the graph.
dataset/ETHPy150Open scrapinghub/splash/splash/network_manager.py/ProxiedQNetworkAccessManager._get_har--crossover with--dataset/ETHPy150Open networkx/networkx/networkx/algorithms/shortest_paths/generic.py/shortest_path_length