diff --git a/dlup/data/dataset.py b/dlup/data/dataset.py
index 206d467e..250368de 100644
--- a/dlup/data/dataset.py
+++ b/dlup/data/dataset.py
@@ -160,12 +160,10 @@ def __len__(self) -> int:
         return self.cumulative_sizes[-1]
 
     @overload
-    def __getitem__(self, index: int) -> T_co:
-        ...
+    def __getitem__(self, index: int) -> T_co: ...
 
     @overload
-    def __getitem__(self, index: slice) -> list[T_co]:
-        ...
+    def __getitem__(self, index: slice) -> list[T_co]: ...
 
     def __getitem__(self, index: Union[int, slice]) -> T_co | list[T_co]:
         """Returns the sample at the given index."""
@@ -285,12 +283,10 @@ def slide_image(self) -> "SlideImage":
         )
 
     @overload
-    def __getitem__(self, index: int) -> TileSample:
-        ...
+    def __getitem__(self, index: int) -> TileSample: ...
 
     @overload
-    def __getitem__(self, index: slice) -> Sequence[TileSample]:
-        ...
+    def __getitem__(self, index: slice) -> Sequence[TileSample]: ...
 
     def __getitem__(self, index: Union[int, slice]) -> Union[TileSample, Sequence[TileSample]]:
         if isinstance(index, slice):
@@ -553,12 +549,10 @@ def from_standard_tiling(
         )
 
     @overload
-    def __getitem__(self, index: int) -> RegionFromWsiDatasetSample:
-        ...
+    def __getitem__(self, index: int) -> RegionFromWsiDatasetSample: ...
 
     @overload
-    def __getitem__(self, index: slice) -> list[RegionFromWsiDatasetSample]:
-        ...
+    def __getitem__(self, index: slice) -> list[RegionFromWsiDatasetSample]: ...
 
     def __getitem__(
         self, index: Union[int, slice]
diff --git a/dlup/tiling.py b/dlup/tiling.py
index 06179cb6..07a6784e 100644
--- a/dlup/tiling.py
+++ b/dlup/tiling.py
@@ -139,12 +139,10 @@ def size(self) -> tuple[int, int]:
         return len(self.coordinates[0]), len(self.coordinates[1])
 
     @overload
-    def __getitem__(self, key: int) -> npt.NDArray[np.int_ | np.float_]:
-        ...
+    def __getitem__(self, key: int) -> npt.NDArray[np.int_ | np.float_]: ...
 
     @overload
-    def __getitem__(self, key: slice) -> list[npt.NDArray[np.int_ | np.float_]]:
-        ...
+    def __getitem__(self, key: slice) -> list[npt.NDArray[np.int_ | np.float_]]: ...
 
     def __getitem__(
         self, key: Union[int, slice]
diff --git a/dlup/tools.py b/dlup/tools.py
index 96a8af8f..66b5f81c 100644
--- a/dlup/tools.py
+++ b/dlup/tools.py
@@ -29,12 +29,10 @@ def __len__(self) -> int:
         return len(self._sequence)
 
     @overload
-    def __getitem__(self, key: int) -> T:
-        ...
+    def __getitem__(self, key: int) -> T: ...
 
     @overload
-    def __getitem__(self, key: slice) -> Sequence[T]:
-        ...
+    def __getitem__(self, key: slice) -> Sequence[T]: ...
 
     def __getitem__(self, key: Union[int, slice]) -> Union[T, Sequence[T]]:
         if isinstance(key, slice):
@@ -61,12 +59,10 @@ def __init__(self, sequences: List[Sequence[T]]) -> None:
         self._len = cumsum[-1]
 
     @overload
-    def __getitem__(self, key: int) -> T:
-        ...
+    def __getitem__(self, key: int) -> T: ...
 
     @overload
-    def __getitem__(self, key: slice) -> Sequence[T]:
-        ...
+    def __getitem__(self, key: slice) -> Sequence[T]: ...
 
     def __getitem__(self, key: Union[int, slice]) -> Union[T, Sequence[T]]:
         if isinstance(key, slice):
diff --git a/tests/common.py b/tests/common.py
index 1d181ac7..f65da94f 100644
--- a/tests/common.py
+++ b/tests/common.py
@@ -99,9 +99,7 @@ def level_dimensions(self):
     @property
     def level_spacings(self):
         spacing = self.spacing
-        return tuple(
-            (spacing[0] * downsample**2, spacing[1] * downsample**2) for downsample in self.level_downsamples
-        )
+        return tuple((spacing[0] * downsample**2, spacing[1] * downsample**2) for downsample in self.level_downsamples)
 
     def get_level_image(self, level):
         return self.image.resize(self.level_dimensions[level])