Add utils module docstring

Co-authored-by: ishaan-berri <ishaan-berri@users.noreply.github.com>

litellm/utils.py

@@ -1,3 +1,5 @@
+"""Utility helpers for LiteLLM core request handling and provider support."""
+
 # from __future__ import annotations must be the first non-comment statement
 from __future__ import annotations
 

tests/test_litellm/test_utils_module_docstring.py

@@ -0,0 +1,11 @@
+import ast
+from pathlib import Path
+
+
+def test_utils_module_has_docstring():
+    utils_path = Path(__file__).parents[2] / "litellm" / "utils.py"
+    module = ast.parse(utils_path.read_text())
+
+    assert ast.get_docstring(module) == (
+        "Utility helpers for LiteLLM core request handling and provider support."
+    )