done

lib/python3.11/site-packages/pandas-stubs/tseries/frequencies.pyi

@@ -0,0 +1,17 @@
+from typing import overload
+
+from pandas import (
+    DatetimeIndex,
+    Series,
+    TimedeltaIndex,
+)
+
+from pandas._typing import Frequency
+
+from pandas.tseries.offsets import DateOffset
+
+@overload
+def to_offset(freq: None, is_period: bool = ...) -> None: ...
+@overload
+def to_offset(freq: Frequency, is_period: bool = ...) -> DateOffset: ...
+def infer_freq(index: Series | DatetimeIndex | TimedeltaIndex) -> str | None: ...