If you have not yet installed Steno3D, simply
pip install steno3d
At that point, you can
import steno3d steno3d.login()
then start building your 3D project. API documentation is available on online. Tutorials and Examples are available as Jupyter notebooks. Steno3D is built with tab-completion in mind for interactive environments like the Jupyter notebook. Class documentation can also be accessed in the python environment with ? and tab completion.