From 39a7ab72509b454f1bd239af242364d84d71119c Mon Sep 17 00:00:00 2001
From: jvdd <boebievdd@gmail.com>
Date: Thu, 25 Jan 2024 17:52:39 +0100
Subject: [PATCH] :see_no_evil: fix linting

---
 tsdownsample/downsampling_interface.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tsdownsample/downsampling_interface.py b/tsdownsample/downsampling_interface.py
index cac1b53..9c05c54 100644
--- a/tsdownsample/downsampling_interface.py
+++ b/tsdownsample/downsampling_interface.py
@@ -227,7 +227,7 @@ def _view_y(y: np.ndarray) -> np.ndarray:
         return y
 
     def _switch_mod_with_y(
-        self, y_dtype: np.dtype, mod: ModuleType, downsample_func: str = None
+        self, y_dtype: np.dtype, mod: ModuleType, downsample_func: Optional[str] = None
     ) -> Callable:
         """Select the appropriate function from the rust module for the y-data.
 
@@ -288,7 +288,7 @@ def _switch_mod_with_x_and_y(
         x_dtype: np.dtype,
         y_dtype: np.dtype,
         mod: ModuleType,
-        downsample_func: str = None,
+        downsample_func: Optional[str] = None,
     ) -> Callable:
         """The x-data is considered in the downsampling
 
@@ -401,7 +401,7 @@ def _downsample_func_prefix(self) -> str:
         return NAN_DOWNSAMPLE_F
 
     def _switch_mod_with_y(
-        self, y_dtype: np.dtype, mod: ModuleType, downsample_func: str = None
+        self, y_dtype: np.dtype, mod: ModuleType, downsample_func: Optional[str] = None
     ) -> Callable:
         """Select the appropriate function from the rust module for the y-data.