Fix flake8 warnings

Author: MDUYN

pyindicators/indicators/crossover.py

@@ -24,7 +24,8 @@ def crossover(
         second_column: Name of the second column
         result_column (optional): Name of the column to
             store the crossover points
-        number_of_data_points (optional): Number of recent rows to consider (optional)
+        number_of_data_points (optional):
+            Number of recent rows to consider (optional)
         strict (optional): If True, requires exact crossovers; otherwise,
             detects when one surpasses the other.
 

pyindicators/indicators/crossunder.py

@@ -86,9 +86,12 @@ def is_crossunder(
         data (Union[pd.DataFrame, pl.DataFrame]): The input data.
         first_column (str): The name of the first series.
         second_column (str): The name of the second series.
-        crossunder_column (str) (optional): The name of the column to store the crossunder points.
-        number_of_data_points (int) (optional): The number of data points to consider. Defaults to None.
-        strict (bool) (optional): If True, requires a strict crossunder. Defaults to True.
+        crossunder_column (str) (optional):
+            The name of the column to store the crossunder points.
+        number_of_data_points (int) (optional):
+            The number of data points to consider. Defaults to None.
+        strict (bool) (optional): If True, requires a strict
+            crossunder. Defaults to True.
 
     Returns:
         bool: True if a crossunder occurs, False otherwise.