- addcb,
- delcb,
- mutcb,
- weight_changed_callback,
- filter_changed_callback,
- split_changed_callback
+ .var_added = var_added_callback,
+ .vars_deleted = vars_deleted_callback,
+ .var_moved = var_moved_callback,
+ .var_changed = var_changed_callback,
+ .weight_changed = weight_changed_callback,
+ .filter_changed = filter_changed_callback,
+ .split_changed = split_changed_callback