Add tests in CI

Author: cbornet

langchain/tests/test_retrievers.py

@@ -2,10 +2,10 @@
 import logging
 import os
 from collections.abc import Iterator
-from dataclasses import dataclass
 from pathlib import Path
 
 import pytest
+import urllib3
 import vectorize_client as v
 from vectorize_client import ApiClient
 
@@ -81,8 +81,6 @@ def pipeline_id(api_client: v.ApiClient, org_id: str) -> Iterator[str]:
         ),
     )
 
-    import urllib3
-
     http = urllib3.PoolManager()
     this_dir = Path(__file__).parent
     file_path = this_dir / "research.pdf"