Fixed issue from new mypy version

diff --git a/lib/sqlalchemy/orm/dynamic.py b/lib/sqlalchemy/orm/dynamic.py
index f8478be90263ab72c92ec4ef1f02cc4dfe1d4a21..8409c5c80ef13a2316bc667b4f8526210131c533 100644 (file)
--- a/lib/sqlalchemy/orm/dynamic.py
+++ b/lib/sqlalchemy/orm/dynamic.py
@@ -47,6 +47,7 @@ if TYPE_CHECKING:
     from typing import Union
 
     from . import QueryableAttribute
+    from ._typing import _LoaderCallable
     from .mapper import Mapper
     from .session import Session
     from .state import InstanceState
@@ -91,7 +92,7 @@ class DynamicAttributeImpl(WriteOnlyAttributeImpl):
         self,
         class_: Union[Type[_T], AliasedClass[_T]],
         key: str,
-        typecallable: type,
+        typecallable: _LoaderCallable,
         dispatch: _Dispatch[QueryableAttribute[_T]],
         target_mapper: Mapper[_T],
         order_by: Tuple[()],
@@ -129,7 +130,7 @@ class AppenderMixin(AbstractCollectionWriter[_T]):
     """
 
     query_class = None
-    autoflush: Callable[[_T, bool], AppenderQuery[_T]]
+    autoflush: Callable[[bool], AppenderQuery[_T]]
     _order_by_clauses: Tuple[ColumnElement[Any], ...]
 
     def __init__(