introduce DownloadManager import

Signed-off-by: varun-edachali-dbx <varun.edachali@databricks.com>

Author: varun-edachali-dbx

src/databricks/sql/backend/sea/queue.py

@@ -3,6 +3,8 @@
 from abc import ABC
 from typing import List, Optional, Tuple, Union, TYPE_CHECKING
 
+from databricks.sql.cloudfetch.download_manager import ResultFileDownloadManager
+
 try:
     import pyarrow
 except ImportError: