8328 nnunet bundle integration (#8329)

Fixes #8328 

### Description



### Types of changes
<!--- Put an `x` in all the boxes that apply, and remove the not
applicable items -->
- [x] Non-breaking change (fix or new feature that would not break
existing functionality).
- [x] Breaking change (fix or new feature that would cause existing
functionality to change).
- [X] New tests added to cover the changes.
- [x] Integration tests passed locally by running `./runtests.sh -f -u
--net --coverage`.
- [x] Quick tests passed locally by running `./runtests.sh --quick
--unittests --disttests`.
- [x] In-line docstrings updated.
- [x] Documentation updated, tested `make html` command in the `docs/`
folder.

---------

Signed-off-by: simben <[email protected]>
Signed-off-by: Simone Bendazzoli <[email protected]>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Eric Kerfoot <[email protected]>

Author: 3 people

docs/source/apps.rst

@@ -277,3 +277,15 @@ FastMRIReader
 
 .. autoclass:: monai.apps.nnunet.nnUNetV2Runner
   :members:
+
+`nnUNet Bundle`
+---------------
+.. autoclass:: monai.apps.nnunet.ModelnnUNetWrapper
+    :members:
+    :special-members:
+
+.. autofunction:: monai.apps.nnunet.get_nnunet_trainer
+.. autofunction:: monai.apps.nnunet.get_nnunet_monai_predictor
+.. autofunction:: monai.apps.nnunet.convert_nnunet_to_monai_bundle
+.. autofunction:: monai.apps.nnunet.convert_monai_bundle_to_nnunet
+.. autofunction:: monai.apps.nnunet.get_network_from_nnunet_plans

docs/source/bundle.rst

@@ -34,6 +34,7 @@ Model Bundle
     :members:
     :special-members:
 
+
 `Scripts`
 ---------
 .. autofunction:: ckpt_export

monai/apps/nnunet/__init__.py

@@ -11,5 +11,13 @@
 
 from __future__ import annotations
 
+from .nnunet_bundle import (
+    ModelnnUNetWrapper,
+    convert_monai_bundle_to_nnunet,
+    convert_nnunet_to_monai_bundle,
+    get_network_from_nnunet_plans,
+    get_nnunet_monai_predictor,
+    get_nnunet_trainer,
+)
 from .nnunetv2_runner import nnUNetV2Runner
 from .utils import NNUNETMode, analyze_data, create_new_data_copy, create_new_dataset_json