diff --git a/libs/standard-tests/langchain_tests/base.py b/libs/standard-tests/langchain_tests/base.py
index bc262b31c19..c54b84055a7 100644
--- a/libs/standard-tests/langchain_tests/base.py
+++ b/libs/standard-tests/langchain_tests/base.py
@@ -9,7 +9,7 @@ class BaseStandardTests(ABC):
 
         :private:
         """
-        # find path to standard test implementations
+        # Find path to standard test implementations
         comparison_class = None
 
         def explore_bases(cls: type) -> None:
diff --git a/libs/standard-tests/langchain_tests/integration_tests/chat_models.py b/libs/standard-tests/langchain_tests/integration_tests/chat_models.py
index 090b1f6dc73..9449c5572d1 100644
--- a/libs/standard-tests/langchain_tests/integration_tests/chat_models.py
+++ b/libs/standard-tests/langchain_tests/integration_tests/chat_models.py
@@ -32,9 +32,7 @@ from pytest_benchmark.fixture import BenchmarkFixture  # type: ignore[import-unt
 from typing_extensions import TypedDict
 from vcr.cassette import Cassette
 
-from langchain_tests.unit_tests.chat_models import (
-    ChatModelTests,
-)
+from langchain_tests.unit_tests.chat_models import ChatModelTests
 from langchain_tests.utils.pydantic import PYDANTIC_MAJOR_VERSION
 
 
diff --git a/libs/standard-tests/langchain_tests/unit_tests/chat_models.py b/libs/standard-tests/langchain_tests/unit_tests/chat_models.py
index 320d2b491f1..f4505482b4a 100644
--- a/libs/standard-tests/langchain_tests/unit_tests/chat_models.py
+++ b/libs/standard-tests/langchain_tests/unit_tests/chat_models.py
@@ -12,15 +12,9 @@ from langchain_core.load import dumpd, load
 from langchain_core.runnables import RunnableBinding
 from langchain_core.tools import BaseTool, tool
 from pydantic import BaseModel, Field, SecretStr
-from pydantic.v1 import (
-    BaseModel as BaseModelV1,
-)
-from pydantic.v1 import (
-    Field as FieldV1,
-)
-from pydantic.v1 import (
-    ValidationError as ValidationErrorV1,
-)
+from pydantic.v1 import BaseModel as BaseModelV1
+from pydantic.v1 import Field as FieldV1
+from pydantic.v1 import ValidationError as ValidationErrorV1
 from pytest_benchmark.fixture import BenchmarkFixture  # type: ignore[import-untyped]
 from syrupy import SnapshotAssertion