From e5dfab0661d798e21436379c926c96641bb9a90a Mon Sep 17 00:00:00 2001
From: Jirka <jirka.borovec@seznam.cz>
Date: Wed, 31 Jan 2024 19:36:39 +0100
Subject: [PATCH] extend exception for invalid `offset_name`

---
 src/gluonts/time_feature/lag.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gluonts/time_feature/lag.py b/src/gluonts/time_feature/lag.py
index deb1313f97..9abadb3a7f 100644
--- a/src/gluonts/time_feature/lag.py
+++ b/src/gluonts/time_feature/lag.py
@@ -146,7 +146,7 @@ def _make_lags_for_month(multiple, num_cycles=3):
             + _make_lags_for_hour(offset.n / (60 * 60))
         )
     else:
-        raise Exception("invalid frequency")
+        raise ValueError(f"invalid frequency | `freq_str={freq_str}` -> `offset_name={offset_name}`")
 
     # flatten lags list and filter
     lags = [