test namespace

[vincentarelbundock]

FYI, I submitted a new version of marginaleffects to CRAN and was told that it broke tests in mvgam (a revdep).

I am unable to find an error specifically related to the changes in this version. However, I did have to add an explicit namespace to a few lines in this test file in order to run the suite.

Let me know if you run into issues with the new marginaleffects and I can help debug as necessary.

[nicholasjclark]

Thanks @vincentarelbundock, the CRAN checks suggest I now have a mismatch with your expected get_predict() signature (https://cran.r-project.org/web/checks/check_results_mvgam.html). Should be an easy fix so I'll sort that out next week