Apply patch [skip ci]

libs/partners/openai/fix_trailing.py

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+"""Script to fix trailing whitespace in batch.py."""
+
+with open('langchain_openai/chat_models/batch.py', 'r') as f:
+    content = f.read()
+
+# Remove all trailing whitespace and ensure single newline at end
+content = content.rstrip() + '\n'
+
+with open('langchain_openai/chat_models/batch.py', 'w') as f:
+    f.write(content)
+
+print("Fixed trailing whitespace in batch.py")