# Context We have highlighted that typing errors in APIs are not very clear. `aligned_dem = tba_dem.coregister_3d(ref_dem, xdem.coreg.NuthKaab(max_iterations="6"))` <img width="950" height="127" alt="Image" src="https://github.com/user-attachments/assets/d989dfb8-5da9-408e-9b26-92314f8fcac5" /> @rhugonnet indicates that this relies on the typing work of our classes.