+XBT_PUBLIC(const char*) sg_host_get_property_value(sg_host_t host, const char* name);
+XBT_PUBLIC(void) sg_host_route(sg_host_t from, sg_host_t to, xbt_dynar_t links);
+XBT_PUBLIC(double) sg_host_route_latency(sg_host_t from, sg_host_t to);
+XBT_PUBLIC(double) sg_host_route_bandwidth(sg_host_t from, sg_host_t to);