GVariant* get_config(const sr_channel_group *group, int key);
bool set_config(const sr_channel_group *group, int key, GVariant *data);
GVariant* list_config(const sr_channel_group *group, int key);
GVariant* get_config(const sr_channel_group *group, int key);
bool set_config(const sr_channel_group *group, int key, GVariant *data);
GVariant* list_config(const sr_channel_group *group, int key);