(self, for_count=False)
return []
:param for_count: True if only filters required for the count query. Only simple filters
                          should be included for the count query.
        :return: list of sql filters
:param for_count: True if only filters required for the count query. Only simple filters
                          should be included for the count query.
        :return: list of sql filters
: param for_count : True if only filters required for the count query . Only simple filters should be included for the count query . : return : list of sql filters
def extra_filters(self, for_count=False):
        """
        :param for_count: True if only filters required for the count query. Only simple filters
                          should be included for the count query.
        :return: list of sql filters
        """
        return []
def extra_filters ( self , for_count = False ) : return [ ]