export declare type AdRuleSlotErrorReason = 'DIFFERENT_STATUS_THAN_AD_RULE' | 'INVALID_VIDEO_AD_DURATION_RANGE' | 'INVALID_VIDEO_MIDROLL_FREQUENCY_TYPE' | 'MALFORMED_VIDEO_MIDROLL_FREQUENCY_CSV' | 'MALFORMED_VIDEO_MIDROLL_FREQUENCY_SINGLE_NUMBER' | 'INVALID_OVERLAY_AD_DURATION_RANGE' | 'INVALID_OVERLAY_MIDROLL_FREQUENCY_TYPE' | 'MALFORMED_OVERLAY_MIDROLL_FREQUENCY_CSV' | 'MALFORMED_OVERLAY_MIDROLL_FREQUENCY_SINGLE_NUMBER' | 'INVALID_BUMPER_MAX_DURATION' | 'UNKNOWN';