def get_auth(self):
        """Returns auth response which has client token unless MFA is required"""
        auth_resp = get_with_retry(self.cerberus_url + '/v2/auth/user',
                                 auth=(self.username, self.password),
                                 headers=self.HEADERS)

        if auth_resp.status_code != 200:
            throw_if_bad_response(auth_resp)

        return auth_resp.json()
Returns auth response which has client token unless MFA is required