No need to read everything from disk when saving the study to the same location. Use the df_has_changed to determine if object should be written. Use write_to as base with the changed assumption that it saves to the exact same location.
No need to read everything from disk when saving the study to the same location. Use the df_has_changed to determine if object should be written.
Use write_to as base with the changed assumption that it saves to the exact same location.