In class TypeProviderCodeGenerator, there should be updated output file template. By convensions, static readonly property _codenames in protected static readonly Dictionary<Type, string> _codenames should have been named Codenames.
I cleaned up unused usings in boilerplate repository. That has been done in commit https://github.com/Kentico/kontent-boilerplate-net/commit/358fb338ae3af96be0f3bfe6740114b00ba6fc5a. From what I know, model files like AboutUs.cs in mentioned commit are also generated by kontent-generators-net, at least for the first time, when these are not present yet. I suggest, that these unused usings are not generated anymore.
TypeProviderCodeGenerator, there should be updated output file template. By convensions, static readonly property_codenamesinprotected static readonly Dictionary<Type, string> _codenamesshould have been namedCodenames.AboutUs.csin mentioned commit are also generated bykontent-generators-net, at least for the first time, when these are not present yet. I suggest, that these unused usings are not generated anymore.