How to define attribute that service provider expects, in xml metadata

[fpetrovic]

I went over docs and repo. I could not find the way to add expected "role" attribute that is required by my service provider. In metadata, I defined:

• entity descriptor
  • sp sso descriptor
  • key descriptor
  • acs
  • single logout service

but can't find the way to attach the role attribute that should be required.

[JasonEleventeen]

Hoping you have found an answer im looking into this as well it appears like this should work?

$assertion->addItem(
                (new AttributeStatement())
                    ->addAttribute(new Attribute(
                        ClaimTypes::EMAIL_ADDRESS,
                        $userEmail
                    ))
                    ->addAttribute(new Attribute(
                        'NAME',
                        'VALUE'
                    ))
            )