(self, **kwargs)
return None
Args:
            kwargs: a dict of self.params and their values obtained from request

        Returns:
            Should return the value selected for this filter

        Override this and return the value. This method will only be called if all required
        parameters are present in the filter context. All the parameters present in the context
        will be passed in as keyword arguments.

        If any of the parameters are invalid a FilterValueException should be raised.

        This method should generally be memoized.
Args:
            kwargs: a dict of self.params and their values obtained from request
Args : kwargs : a dict of self . params and their values obtained from request
def value(self, **kwargs):
        """
        Args:
            kwargs: a dict of self.params and their values obtained from request

        Returns:
            Should return the value selected for this filter

        Override this and return the value. This method will only be called if all required
        parameters are present in the filter context. All the parameters present in the context
        will be passed in as keyword arguments.

        If any of the parameters are invalid a FilterValueException should be raised.

        This method should generally be memoized.
        """
        return None
def value ( self , * * kwargs ) : return None