Handle variable attributes in the Foreign Interface, if possible

[turibe]

It seems that the Foreign Interface does not have methods for creating attribute variables, and for extracting attributes from variables.

[JanWielemaker]

Indeed. I've not come across a good use case. If you think you have one, please discuss. Please do so on the Discourse forum.

[turibe]

Thanks, will do. Is it still OK to make issues, or should I ask on Discourse first? For example, looking for how to construct a rational number using the (C) Foreign Language interface...