def authn_info(self):
        res = []
        for astat in self.assertion.authn_statement:
            context = astat.authn_context
            if context:
                try:
                    aclass = context.authn_context_class_ref.text
                except __HOLE__:
                    aclass = ""
                try:
                    authn_auth = [a.text for a in
                                  context.authenticating_authority]
                except AttributeError:
                    authn_auth = []
                res.append((aclass, authn_auth))
        return res
dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/pysaml2-2.4.0/src/saml2/response.py/AuthnResponse.authn_info