[NTG-context] accessing xml element attributes in lua, how, if you do not want to use the .at scheme?

I’ve been trying to find out how I can access XML node properties/attributes in lua other than via the .at syntactic scheme but using the property/attribute name as a string. E.g., currently I do: someVar = someNode.at.someProperty but I would like to do something like someVar = someNode[“someProperty”] or someNode.attribute(“someProperty”) or something where I can use the string version of the properties/attribute name. It’s probably possible (after all these are all dynamic structures that come from data), but how exactly? Thanks, G