[django-filter] Update for django-stubs 6.0.8

stubs/django-filter/METADATA.toml

@@ -1,6 +1,6 @@
 version = "26.1.*"
 upstream-repository = "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/carltongibson/django-filter/"
-dependencies = ["django-stubs"]
+dependencies = ["django-stubs>=6.0.8"]
 
 [tool.stubtest]
 mypy-plugins = ["mypy_django_plugin.main"]

stubs/django-filter/django_filters/fields.pyi

@@ -1,9 +1,10 @@
 from _typeshed import Unused
 from collections.abc import Callable, Iterable, Mapping, Sequence
-from typing import Any, NamedTuple, TypeAlias
+from typing import Any, NamedTuple, TypeAlias, TypeVar
 
 from django import forms
 from django.db.models import Choices
+from django.db.models.base import Model
 from django.forms import Widget
 from django_stubs_ext import StrOrPromise
 
@@ -27,6 +28,8 @@ _Choices: TypeAlias = Iterable[_Choice | _ChoiceNamedGroup]
 _ChoicesMapping: TypeAlias = Mapping[Any, Any]
 _ChoicesInput: TypeAlias = _Choices | _ChoicesMapping | type[Choices] | Callable[[], _Choices | _ChoicesMapping]
 
+_M = TypeVar("_M", bound=Model)
+
 class RangeField(forms.MultiValueField):
     widget: _ClassLevelWidget = ...
     def __init__(
@@ -111,7 +114,7 @@ class ChoiceIterator:
     def __iter__(self) -> Any: ...  # Iterator yields choice tuples with any value types
     def __len__(self) -> int: ...
 
-class ModelChoiceIterator(forms.models.ModelChoiceIterator):
+class ModelChoiceIterator(forms.models.ModelChoiceIterator[_M]):
     def __iter__(self) -> Any: ...  # Iterator yields choice tuples with any value types
     def __len__(self) -> int: ...