docs: def reset(self, route=None):
          ''' Reset all routes (force plugins to be re-applied) and clear all
              caches. If an ID or route object is given, only that specific route
              is affected. '''
          if route is None: routes = self.routes
          elif isinstance(route, Route): routes = [route]
          else: routes = [self.routes[route]]
          for route in routes: route.reset()
          if DEBUG:
              for route in routes: route.prepare()
          self.trigger_hook('app_reset')