Doesnt work in blender 4.1

[Fennecai]

Describe the bug due to the removal of the auto smoothing feature in blender 4.1, in favor of a modifier that does the same thing (smooth by angle modifier), this addon no longer works on model importing.

To Reproduce Steps to reproduce the behavior:

1. import a vmf or model in blender 4.1
2. see the errors

Expected behavior i expected the models/vmf to import correctly, but they dont import at all.

Related files it does this with any mdl or vmf containing models, so...

Logs

AttributeError: 'Mesh' object has no attribute 'use_auto_smooth'
[Plumber] [ERROR] Asset importing errored: AttributeError: 'Mesh' object has no attribute 'use_auto_smooth'
Traceback (most recent call last):
  File "C:\Users\[REDACTED]\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\plumber\asset\__init__.py", line 61, in model
    self.model_tracker.import_model(model, self.prop_collection)
  File "C:\Users\[REDACTED]\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\plumber\asset\model.py", line 80, in import_model
    mesh_obj = import_mesh(
               ^^^^^^^^^^^^
  File "C:\Users\[REDACTED]\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\plumber\asset\model.py", line 176, in import_mesh
    mesh_data.use_auto_smooth = True
    ^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'Mesh' object has no attribute 'use_auto_smooth'
[Plumber] [ERROR] Asset importing errored: AttributeError: 'Mesh' object has no attribute 'use_auto_smooth'
[Plumber] [INFO] vmf imported in 4.71 s
Info: Deleted 1 object(s)

Screenshots Not applicable, theres nothing there because it doesnt import.

Details (please complete the following information):

• OS: Windows 11
• Blender Version: 4.1+
• Addon Version: latest release, 1.0.1
• Did you download a release or build the addon yourself: downloaded the release
• Related Game: any game, tried using garry's mod with custom paths to all other source engine games content.

Additional context im suprised nobody has reported this yet.