<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def is_refreshable_url(self, request):
 """Takes a request and returns whether it triggers a refresh examination :arg HttpRequest request: :returns: boolean """

        # Do not attempt to refresh the session if the OIDC backend is not used
        backend_session = request.session.get(BACKEND_SESSION_KEY)
        is_oidc_enabled = True
        if backend_session:
            auth_backend = import_string(backend_session)
            is_oidc_enabled = issubclass(auth_backend, OIDCAuthenticationBackend)

        return (
            request.method == 'GET' and
            is_authenticated(request.user) and
            is_oidc_enabled and
            request.path not in self.exempt_urls
        )