Update packages/google-api-core/google/api_core/rest_helpers.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: hebaalazzeh

packages/google-api-core/google/api_core/rest_helpers.py

@@ -16,6 +16,7 @@
 
 import functools
 import operator
+import re
 from typing import Any, Dict, List, Optional, Tuple
 
 from google.api_core import path_template