auto fixes from pre-commit.com hooks (#1198)

### Checks
<!--- Put an `x` in all the boxes that apply, and remove the not
applicable items -->
- [x] Avoid including large-size files in the PR.
- [x] Clean up long text outputs from code cells in the notebook.
- [x] For security purposes, please check the contents and remove any
sensitive info such as user names and private key.
- [x] Ensure (1) hyperlinks and markdown anchors are working (2) use
relative paths for tutorial repo files (3) put figure and graphs in the
`./figure` folder
- [ ] Notebook runs automatically `./runner.sh -t <path to .ipynb file>`

---------
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: monai-bot

.github/contributing_templates/notebook/example_class.py

@@ -17,15 +17,15 @@
 from PIL import Image
 
 
-class ExampleImageGenerator():
+class ExampleImageGenerator:
     def __init__(self, num_image=40, image_size=(128, 128)):
         self.num_image = num_image
         self.image_size = image_size
 
     def generate(self, tempdir):
         for i in range(self.num_image):
             im, seg = create_test_image_2d(
-                self.image_size[0], self.image_size[1], num_seg_classes=1,random_state=np.random.RandomState(42)
+                self.image_size[0], self.image_size[1], num_seg_classes=1, random_state=np.random.RandomState(42)
             )
             Image.fromarray((im * 255).astype("uint8")).save(os.path.join(tempdir, f"img{i:d}.png"))
             Image.fromarray((seg * 255).astype("uint8")).save(os.path.join(tempdir, f"seg{i:d}.png"))

.pre-commit-config.yaml

@@ -22,30 +22,11 @@ repos:
         args: ['--maxkb=1024']
       - id: detect-private-key
 
-  #- repo: https://github.com/asottile/pyupgrade
-  #  rev: v2.23.2
-  #  hooks:
-  #    - id: pyupgrade
-  #      args: [--py36-plus]
-  #      name: Upgrade code
-
-  #- repo: https://github.com/asottile/yesqa
-  #  rev: v1.2.3
-  #  hooks:
-  #    - id: yesqa
-  #      name: Unused noqa
-
-  #- repo: https://github.com/PyCQA/isort
-  #  rev: 5.9.3
-  #  hooks:
-  #    - id: isort
-  #      name: Format imports
-
-  # - repo: https://github.com/psf/black
-  #   rev: 21.7b0
-  #   hooks:
-  #     - id: black
-  #       name: Format code
+  - repo: https://github.com/psf/black
+    rev: "22.12.0"
+    hooks:
+      - id: black
+      - id: black-jupyter
 
   #- repo: https://github.com/executablebooks/mdformat
   #  rev: 0.7.8