Add import for typing.List

Author: CNFeffery

dash/dash.py

@@ -18,7 +18,7 @@
 import base64
 import traceback
 from urllib.parse import urlparse
-from typing import Any, Callable, Dict, Optional, Union, Sequence, Literal
+from typing import Any, Callable, Dict, Optional, Union, Sequence, Literal, List
 
 import flask