diff --git a/xarray/plot/utils.py b/xarray/plot/utils.py
index 7422db4c5d2..5d08826b415 100644
--- a/xarray/plot/utils.py
+++ b/xarray/plot/utils.py
@@ -1294,16 +1294,14 @@ def _infer_meta_data(ds, x, y, hue, hue_style, add_guide, funcname):
 def _parse_size(
     data: None,
     norm: tuple[float | None, float | None, bool] | Normalize | None,
-) -> None:
-    ...
+) -> None: ...
 
 
 @overload
 def _parse_size(
     data: DataArray,
     norm: tuple[float | None, float | None, bool] | Normalize | None,
-) -> pd.Series:
-    ...
+) -> pd.Series: ...
 
 
 # copied from seaborn
@@ -1448,12 +1446,10 @@ def data_is_numeric(self) -> bool:
         return self._data_is_numeric
 
     @overload
-    def _calc_widths(self, y: np.ndarray) -> np.ndarray:
-        ...
+    def _calc_widths(self, y: np.ndarray) -> np.ndarray: ...
 
     @overload
-    def _calc_widths(self, y: DataArray) -> DataArray:
-        ...
+    def _calc_widths(self, y: DataArray) -> DataArray: ...
 
     def _calc_widths(self, y: np.ndarray | DataArray) -> np.ndarray | DataArray:
         """
@@ -1475,12 +1471,10 @@ def _calc_widths(self, y: np.ndarray | DataArray) -> np.ndarray | DataArray:
         return widths
 
     @overload
-    def _indexes_centered(self, x: np.ndarray) -> np.ndarray:
-        ...
+    def _indexes_centered(self, x: np.ndarray) -> np.ndarray: ...
 
     @overload
-    def _indexes_centered(self, x: DataArray) -> DataArray:
-        ...
+    def _indexes_centered(self, x: DataArray) -> DataArray: ...
 
     def _indexes_centered(self, x: np.ndarray | DataArray) -> np.ndarray | DataArray:
         """
@@ -1852,8 +1846,7 @@ def _line(
     plotnonfinite: bool = ...,
     data=...,
     **kwargs,
-) -> LineCollection:
-    ...
+) -> LineCollection: ...
 
 
 @overload
@@ -1877,8 +1870,7 @@ def _line(
     data=...,
     drawstyle: DrawStyleType = ...,
     **kwargs,
-) -> Line3DCollection:
-    ...
+) -> Line3DCollection: ...
 
 
 def _line(