I know that I can use the option to enable InternalsVisibleTo in LinqPad (https://linqpad.uservoice.com/forums/18302-linqpad-feature-suggestions/suggestions/513533-add-support-for-internalsvisibleto), but this only works if the assembly does not have a strong name.

It would be good if there was a way to add LINQPadQuery with a strong name as a friend.