remove unused import

Author: Coniferish

src/unstructured_client/_hooks/custom/request_utils.py

@@ -4,7 +4,7 @@
 import io
 import json
 import logging
-from typing import Any, BinaryIO, Sequence, Tuple
+from typing import Any, BinaryIO, Tuple
 
 import httpx
 from httpx._multipart import DataField, FileField