[Idpy-discuss] Include SAML2 backend NameID in frontend response

Hi, I'm looking for a way to map the SAML2 NameID to an attribute so that I can use its value in the response generated by the frontend. In my use case, different SAML2 IdPs might want to send the user identifier in different attributes *or* in the NameID, and I want to pass this information on to my application that is connected to the frontend. I think I can not do this with the current attribute mapping code, because it only works on attributes, and the NameID is not an attribute. What is the best way to achieve this? (I'm considering to perform the inclusion of the NameID only if the NameIDFormat is something reasonable to use as a user identifier, but first I need to get hold of the value on the frontend side.) Thanks, Kristof