Hello @eriknw, thanks for your help with pointing me to the .ss namespace for methods such as flatten() and reshape().
I have since found some implementations examples in your unit-test located here: ./graphblas/tests/test_matrix.py:. It seems to cover exactly what we are looking for and appears to work the same as scipy.sparse. There is even support for Fortran order flattening :).
I was simply wondering if we could reflect some of these methods in the docs? And perhaps expand a bit more on the .ss namespace? The only place where I could find mentions of the namespace is here. And the API reference doesn't seem to cover the namespace either.