Using UiPathTeam.TwoStepAuthentication.GetGoogleToken in a coded source file

I’m trying to use UiPathTeam.TwoStepAuthentication.GetGoogleToken in a coded source file. Are there any tutorials on how to use activities in a coded source file? Right now I’m getting an error on a missign reference. I’ve added it to the project, ad an import and in the coded source file.

var Something = new UiPathTeam.TwoStepAuthentication.GetGoogleToken { SecretKey = new InOutArgument(“sdfsdfsdf”) };

Best regards
Rickard