-int gl_graph_instance_get_all (graph_config_t *cfg,
- gl_inst_callback callback, void *user_data);
+int gl_graph_get_all (graph_callback_t callback, void *user_data);
+
+int gl_graph_instance_get_all (graph_config_t *cfg, graph_inst_callback_t callback,
+ void *user_data);
+
+int gl_instance_get_all (graph_inst_callback_t callback, void *user_data);