fix type-hint

metno · Jul 30, 2024 · 0a22c83 · 0a22c83
1 parent 9f03a3f
commit 0a22c83
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/pyaerocom/helpers.py b/pyaerocom/helpers.py
@@ -946,7 +946,7 @@ def merge_station_data(
     return merged
 
 
-def _get_pandas_freq_and_offset(freq: str) -> tuple[str, pd.Timedelta]:
+def _get_pandas_freq_and_offset(freq: str) -> tuple[str, pd.Timedelta | None]:
     """Helper to convert resampling info"""
     if freq in TS_TYPE_TO_PANDAS_FREQ:
         freq = TS_TYPE_TO_PANDAS_FREQ[freq]