From 57315691eb32b731d8e5f37eedf04f7a6e683a32 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Sat, 14 Jan 2023 11:41:13 +0000
Subject: [PATCH] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 histolab/stain_normalizer.py        |  4 +++-
 tests/unit/test_stain_normalizer.py | 23 ++++++++++++++++++-----
 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/histolab/stain_normalizer.py b/histolab/stain_normalizer.py
index 329ab0a78..85300047d 100644
--- a/histolab/stain_normalizer.py
+++ b/histolab/stain_normalizer.py
@@ -379,7 +379,9 @@ def transform(self, img_rgb: PIL.Image.Image) -> PIL.Image.Image:
         norm_rgb = LabToRgb()(norm_lab)
         return norm_rgb
 
-    def _summary_statistics(self, img_rgb: PIL.Image.Image) -> Tuple[np.ndarray, np.ndarray]:
+    def _summary_statistics(
+        self, img_rgb: PIL.Image.Image
+    ) -> Tuple[np.ndarray, np.ndarray]:
         """Return mean and standard deviation of each channel in LAB color space.
 
         Parameters
diff --git a/tests/unit/test_stain_normalizer.py b/tests/unit/test_stain_normalizer.py
index b0a9403aa..ae9a3c9ce 100644
--- a/tests/unit/test_stain_normalizer.py
+++ b/tests/unit/test_stain_normalizer.py
@@ -373,7 +373,10 @@ def it_knows_how_to_calculate_summary_statistics(self, request):
         rgb_to_lab_.return_value = np.array(PILIMG.RGB_RANDOM_COLOR_500X500)
         reinhard_stain_normalizer = ReinhardStainNormalizer()
 
-        mean_per_channel, std_per_channel = reinhard_stain_normalizer._summary_statistics(img)
+        (
+            mean_per_channel,
+            std_per_channel,
+        ) = reinhard_stain_normalizer._summary_statistics(img)
 
         assert isinstance(mean_per_channel, np.ndarray)
         assert isinstance(std_per_channel, np.ndarray)
@@ -388,8 +391,13 @@ def it_knows_how_to_calculate_summary_statistics(self, request):
 
     def it_knows_how_to_fit(self, request):
         img = PILIMG.RGB_RANDOM_COLOR_500X500
-        _summary_statistics_ = method_mock(request, ReinhardStainNormalizer, "_summary_statistics")
-        _summary_statistics_.return_value = (np.array([1.0, 1.0, 1.0]), np.array([2.0, 2.0, 2.0]))
+        _summary_statistics_ = method_mock(
+            request, ReinhardStainNormalizer, "_summary_statistics"
+        )
+        _summary_statistics_.return_value = (
+            np.array([1.0, 1.0, 1.0]),
+            np.array([2.0, 2.0, 2.0]),
+        )
         reinhard_stain_normalizer = ReinhardStainNormalizer()
 
         reinhard_stain_normalizer.fit(img)
@@ -404,8 +412,13 @@ def it_knows_how_to_fit(self, request):
 
     def it_knows_how_to_transform(self, request):
         img = PILIMG.RGB_RANDOM_COLOR_500X500
-        _summary_statistics_ = method_mock(request, ReinhardStainNormalizer, "_summary_statistics")
-        _summary_statistics_.return_value = (np.array([1.0, 1.0, 1.0]), np.array([2.0, 2.0, 2.0]))
+        _summary_statistics_ = method_mock(
+            request, ReinhardStainNormalizer, "_summary_statistics"
+        )
+        _summary_statistics_.return_value = (
+            np.array([1.0, 1.0, 1.0]),
+            np.array([2.0, 2.0, 2.0]),
+        )
         rgb_to_lab_ = method_mock(request, RgbToLab, "__call__")
         rgb_to_lab_.return_value = np.array(PILIMG.RGB_RANDOM_COLOR_500X500)
         tissue_mask_ = method_mock(request, ReinhardStainNormalizer, "_tissue_mask")