Improve types for get_formset and get_template (#219)

django-stubs/db/models/manager.pyi

@@ -26,7 +26,7 @@ class BaseManager(QuerySet[_T]):
     @classmethod
     def from_queryset(
         cls, queryset_class: type[QuerySet[_T]], class_name: str | None = ...
-    ) -> type[Manager[_T]]: ...
+    ) -> type[Self]: ...
     @classmethod
     def _get_queryset_methods(
         cls, queryset_class: type[QuerySet[_T]]

django-stubs/template/backends/django.pyi

@@ -1,6 +1,7 @@
 from collections.abc import Iterator
 from typing import Any
 
+from django.template import base
 from django.template.engine import Engine
 from django.template.exceptions import TemplateDoesNotExist
 
@@ -13,6 +14,14 @@ class DjangoTemplates(BaseEngine):
         self, custom_libraries: dict[str, str]
     ) -> dict[str, str]: ...
 
+class Template:
+    template: base.Template
+    backend: BaseEngine
+    def __init__(self, template: base.Template, backend: BaseEngine) -> None: ...
+    @property
+    def origin(self) -> base.Origin: ...
+    def render(self, context: Any = ..., request: Any = ...) -> str: ...
+
 def copy_exception(
     exc: TemplateDoesNotExist, backend: DjangoTemplates | None = ...
 ) -> TemplateDoesNotExist: ...

django-stubs/template/loader.pyi

@@ -1,7 +1,7 @@
 from typing import Any
 
 from django.http.request import HttpRequest
-from django.template.base import Template
+from django.template.backends.django import Template
 from django.template.exceptions import (  # noqa: F401
     TemplateDoesNotExist as TemplateDoesNotExist,
 )