(self)
Context for rendering the filter.
            Should return a dict.
Context for rendering the filter.
            Should return a dict.
Context for rendering the filter . Should return a dict .
def filter_context(self):
        """
            Context for rendering the filter.
            Should return a dict.
        """
        raise NotImplementedError("filter_context must be overridden")
def filter_context ( self ) : raise NotImplementedError ( "filter_context must be overridden" )