docs: def clone(self, klass=None, memo=None, **kwargs):
          """
          Creates a copy of the current instance. The 'kwargs' parameter can be
          used by clients to update attributes after copying has taken place.
          """
          obj = Empty()
          obj.__class__ = klass or self.__class__
  
          obj.resource = self.resource
  
          obj.filters = self.filters.copy()
          obj.order_by = self.order_by
  
          obj.low_mark = self.low_mark
          obj.high_mark = self.high_mark
  
          obj.__dict__.update(kwargs)
  
          return obj