make pep561 compliant

django-stubs/db/models/deletion.pyi

@@ -0,0 +1,104 @@
+from django.contrib.auth.models import (
+    Permission,
+    User,
+)
+from django.contrib.contenttypes.models import ContentType
+from django.db.models.base import Model
+from django.db.models.fields.related import ForeignKey
+from django.db.models.fields.reverse_related import ManyToOneRel
+from django.db.models.options import Options
+from django.db.models.query import QuerySet
+from typing import (
+    Any,
+    Callable,
+    Dict,
+    Iterator,
+    List,
+    Optional,
+    Tuple,
+    Type,
+    Union,
+)
+
+
+def CASCADE(
+    collector: Collector,
+    field: ForeignKey,
+    sub_objs: QuerySet,
+    using: str
+) -> None: ...
+
+
+def SET(value: int) -> Callable: ...
+
+
+def SET_DEFAULT(
+    collector: Collector,
+    field: ForeignKey,
+    sub_objs: QuerySet,
+    using: str
+) -> None: ...
+
+
+def SET_NULL(
+    collector: Collector,
+    field: ForeignKey,
+    sub_objs: QuerySet,
+    using: str
+) -> None: ...
+
+
+def get_candidate_relations_to_delete(opts: Options) -> Iterator[Any]: ...
+
+
+class Collector:
+    def __init__(self, using: str) -> None: ...
+    def add(
+        self,
+        objs: Any,
+        source: Optional[Union[Type[Model], Type[ContentType]]] = ...,
+        nullable: bool = ...,
+        reverse_dependency: bool = ...
+    ) -> Any: ...
+    def add_field_update(
+        self,
+        field: ForeignKey,
+        value: Optional[int],
+        objs: QuerySet
+    ) -> None: ...
+    def can_fast_delete(
+        self,
+        objs: Any,
+        from_field: Optional[ForeignKey] = ...
+    ) -> bool: ...
+    def collect(
+        self,
+        objs: Any,
+        source: Optional[Union[Type[Model], Type[ContentType]]] = ...,
+        nullable: bool = ...,
+        collect_related: bool = ...,
+        source_attr: Optional[str] = ...,
+        reverse_dependency: bool = ...,
+        keep_parents: bool = ...
+    ) -> None: ...
+    def delete(self) -> Union[Tuple[int, Dict[str, int]], Tuple[int, Dict[Any, Any]]]: ...
+    def get_del_batches(
+        self,
+        objs: Union[List[User], List[Model], List[ContentType], List[Permission]],
+        field: ForeignKey
+    ) -> Union[List[List[Model]], List[List[ContentType]], List[List[User]], List[List[Permission]]]: ...
+    def instances_with_model(self) -> Iterator[Any]: ...
+    def related_objects(
+        self,
+        related: ManyToOneRel,
+        objs: Any
+    ) -> QuerySet: ...
+    def sort(self) -> None: ...
+
+
+class ProtectedError:
+    def __init__(
+        self,
+        msg: str,
+        protected_objects: Union[List[Model], QuerySet]
+    ) -> None: ...