[NTG-context] Question about parsing XML and attributes (normally var.at.attrib) with a name with ':' in it

If I have an XML element like this: and it has been read in a lua variable foo, I can get at attribute x with foo.at.x But how do I get at attribute:B? Gerben Wierda (LinkedIn https://www.linkedin.com/in/gerbenwierda) R&A Enterprise Architecture https://ea.rna.nl/ (main site) Book: Chess and the Art of Enterprise Architecture https://ea.rna.nl/the-book/ Book: Mastering ArchiMate https://ea.rna.nl/the-book-edition-iii/