[PYTHON] Bug Binary module missing

Description

While trying to run the python flask for the first time, I got the following error:

Traceback (most recent call last):
File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
"main", mod_spec)
File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/mnt/c/Users/matir/Downloads/python-flask-server-generated/swagger_server/main.py", line 16, in
main()
File "/mnt/c/Users/matir/Downloads/python-flask-server-generated/swagger_server/main.py", line 11, in main
app.add_api('swagger.yaml', arguments={'title': 'AnyVision API Documentation'})
File "/home/mrozenblum/.local/lib/python3.6/site-packages/connexion/apps/flask_app.py", line 54, in add_api
api = super(FlaskApp, self).add_api(specification, **kwargs)
File "/home/mrozenblum/.local/lib/python3.6/site-packages/connexion/apps/abstract.py", line 155, in add_api
options=api_options.as_dict())
File "/home/mrozenblum/.local/lib/python3.6/site-packages/connexion/apis/abstract.py", line 109, in init
self.add_paths()
File "/home/mrozenblum/.local/lib/python3.6/site-packages/connexion/apis/abstract.py", line 214, in add_paths
self._handle_add_operation_error(path, method, err.exc_info)
File "/home/mrozenblum/.local/lib/python3.6/site-packages/connexion/apis/abstract.py", line 228, in _handle_add_operation_error
six.reraise(*exc_info)
File "/home/mrozenblum/.local/lib/python3.6/site-packages/six.py", line 693, in reraise
raise value
File "/home/mrozenblum/.local/lib/python3.6/site-packages/connexion/resolver.py", line 61, in resolve_function_from_operation_id
return self.function_resolver(operation_id)
File "/home/mrozenblum/.local/lib/python3.6/site-packages/connexion/utils.py", line 100, in get_function_from_name
raise last_import_error
File "/home/mrozenblum/.local/lib/python3.6/site-packages/connexion/utils.py", line 88, in get_function_from_name
module = importlib.import_module(module_name)
File "/usr/lib/python3.6/importlib/init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 994, in _gcd_import
File "", line 971, in _find_and_load
File "", line 955, in _find_and_load_unlocked
File "", line 665, in _load_unlocked
File "", line 678, in exec_module
File "", line 219, in _call_with_frames_removed
File "/mnt/c/Users/matir/Downloads/python-flask-server-generated/swagger_server/controllers/camera_controller.py", line 4, in
from swagger_server.models.binary import Binary # noqa: E501
ModuleNotFoundError: No module named 'swagger_server.models.binary'

Effectively there is no model called Binary under models folder.

Command line used for generation

python3 -m swagger_server

Steps to reproduce

Downloaded the python flask server stub from https://app.swaggerhub.com/apis/AnyVision/any-vision_api_documentation/1.20.2

Run pip3 install -r requirements.txt
Run python3 -m swagger_server

Related issues/PRs

https://github.com/swagger-api/swagger-codegen/issues/7161

Start by reproducing the reported generation with the AnyVision API definition, then inspect the generated swagger_server/models directory and controllers/camera_controller.py. Confirm why Binary is imported but no corresponding model is produced, and verify that the generated server starts successfully after the issue is corrected.