In modify_domain name, I am getting this issue. Could you help me on this?
Please update your post with details on which week, lab and cell you are referring to.
I am also getting the same error of “schema is of type str schema should be proto”
on executing this line  modify_domain_of_features
and further I am able to get the next Exercise graded due to this error.
which parameter is of type proto?
In this modify function we have only this line
tfdv.set_domain(feature, schema, to_domain_name)
Please see this link on tfdv.set_domain and fix the method call.
Thanks this helped and corrected the issue.