fix typing

querybuilder/drivers/sqlite/tokenizer.py

@@ -42,7 +42,7 @@ class Tokenizer(sqlTokenizer):
                 return dbname.format(name=name)
 
         else:
-            get_target_database_for_attach = schema_strategy
+            get_target_database_for_attach = cast(Callable[[str], str], schema_strategy)
         self.get_target_database_for_attach = get_target_database_for_attach
         super().__init__(**kwargs)