+bool group_dpif_lookup(struct ofproto_dpif *ofproto, uint32_t group_id,
+ struct group_dpif **group);
+
+void group_dpif_release(struct group_dpif *group);
+
+void group_dpif_get_buckets(const struct group_dpif *group,
+ const struct list **buckets);
+enum ofp11_group_type group_dpif_get_type(const struct group_dpif *group);
+