code: protected boolean isSupported(ProfileRequestContext<?, ?> context, String uri, List<String> assuranceURIs) {
      return assuranceURIs.contains(uri);
    }
docs: A Proxy-IdP may communicate with an IdP that uses different URI declarations for the same type of authentication
  methods, e.g., the Swedish eID framework and eIDAS has different URI:s for the same type of authentication. This
  method will enable tranformation of URI:s and provide the possibility to match URI:s from different schemes.
  <p>
  The default implementation just checks if the supplied {@code uri} is part of the {@code assuranceURIs} list. To
  implement different behaviour override this method.
  </p>
  
  @param context
  the request context
  @param uri
  the URI to test
  @param assuranceURIs
  IdP assurance certification URI:s
  @return {@code true} if there is a match, and {@code false} otherwise