Update timefeatures.py

utils/timefeatures.py

@@ -50,7 +50,7 @@ class DayOfYear(TimeFeature):
 
 class MonthOfYear(TimeFeature):
     """Month of year encoded as value between [-0.5, 0.5]"""
-    def __call__(self, index: pd.DatetimeIndex) -> np.ndarray:
+    def __call__(self, index: pd.DatetimeIndex) -> mnp.ndarray:
         return (index.month - 1) / 11.0 - 0.5
 
 class WeekOfYear(TimeFeature):