Resolve lint error

Author: 2jun0

sqlmodel/ext/asyncio/async_model.py

@@ -56,11 +56,11 @@ def __init__(
         for field_name, field_info in cls.__async_sqlmodel_awaitable_fields__.items():
 
             def get_awaitable_field(
-                self, field: str = field_info.field
+                self: "AsyncSQLModel", field: str = field_info.field
             ) -> Coroutine[Any, Any, Any]:
                 return greenlet_spawn(getattr, self, field)
 
-            setattr(cls, field_name, property(get_awaitable_field))  # type: ignore
+            setattr(cls, field_name, property(get_awaitable_field))
 
         SQLModelMetaclass.__init__(cls, classname, bases, dict_, **kw)