from fansifter_common.exceptions import FansifterError class DateValueError(FansifterError): code = "start_date_is_after_end_date" message = "Start date must be before end date" status_code = 400 class FanSegmentLlmResponseNotAvailableError(FansifterError): code = "fan_segment_lllm_response_not_available" message = "Fan Segment LLM Response Not Available" status_code = 503