[pre-commit.ci] auto fixes from pre-commit.com hooks

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tests/services/sessions/test_manager.py

@@ -1,5 +1,6 @@
 import asyncio
 from datetime import datetime
+
 import pytest
 from tornado import web
 from traitlets import TraitError
@@ -317,15 +318,20 @@ async def test_update_session(session_manager):
     }
     assert model == expected
 
+
 async def test_update_session_with_custom_env_vars(session_manager):
-    custom_env_vars= {'test_env_name': 'test_env_value'}
+    custom_env_vars = {"test_env_name": "test_env_value"}
     await session_manager.create_session(
-        path="/path/to/test.ipynb", kernel_name="julia", type="notebook", custom_env_vars=custom_env_vars,
+        path="/path/to/test.ipynb",
+        kernel_name="julia",
+        type="notebook",
+        custom_env_vars=custom_env_vars,
     )
     kernel_id = "A"
     custom_envs = session_manager._custom_envs[kernel_id]
-    expected = 'test_env_value'
-    assert custom_envs['test_env_name'] == expected
+    expected = "test_env_value"
+    assert custom_envs["test_env_name"] == expected
+
 
 async def test_bad_update_session(session_manager):
     # try to update a session with a bad keyword ~ raise error