move generated stubs to separate directory, too messty

django-stubs-generated/db/migrations/operations/base.pyi

@@ -0,0 +1,32 @@
+from typing import Any, List, Optional, Type
+
+
+class Operation:
+    reversible: bool = ...
+    reduces_to_sql: bool = ...
+    atomic: bool = ...
+    elidable: bool = ...
+    serialization_expand_args: Any = ...
+    def __new__(
+        cls: Type[Operation], *args: Any, **kwargs: Any
+    ) -> Operation: ...
+    def deconstruct(self): ...
+    def state_forwards(self, app_label: Any, state: Any) -> None: ...
+    def database_forwards(
+        self, app_label: Any, schema_editor: Any, from_state: Any, to_state: Any
+    ) -> None: ...
+    def database_backwards(
+        self, app_label: Any, schema_editor: Any, from_state: Any, to_state: Any
+    ) -> None: ...
+    def describe(self): ...
+    def references_model(self, name: str, app_label: str = ...) -> bool: ...
+    def references_field(
+        self, model_name: str, name: str, app_label: str = ...
+    ) -> bool: ...
+    def allow_migrate_model(self, connection_alias: Any, model: Any): ...
+    def reduce(
+        self,
+        operation: Operation,
+        in_between: List[Operation],
+        app_label: str = ...,
+    ) -> bool: ...