chore: drop UP045 (#33362)

Python 3.9 EOL

libs/partners/exa/tests/unit_tests/__init__.py

@@ -0,0 +1 @@
+"""Unit tests for `langchain_exa` package."""

libs/partners/exa/tests/unit_tests/test_imports.py

@@ -1,3 +1,5 @@
+"""Unit tests for imports in `langchain_exa`."""
+
 from langchain_exa import __all__  # type: ignore[import-not-found, import-not-found]
 
 EXPECTED_ALL = [
@@ -10,4 +12,5 @@ EXPECTED_ALL = [
 
 
 def test_all_imports() -> None:
+    """Test that all expected imports are in `__all__`."""
     assert sorted(EXPECTED_ALL) == sorted(__all__)

libs/partners/exa/tests/unit_tests/test_standard.py

@@ -1,3 +1,5 @@
+"""Standard unit tests for ExaSearchRetriever."""
+
 import pytest
 from pytest_benchmark.fixture import BenchmarkFixture  # type: ignore[import-untyped]