refactor: update formatting in test_assistant_messages_in_history

- Enhanced the readability of the test case by reformatting the expected output and input message structures.
- This change maintains the same functionality while making the test code cleaner and easier to understand.

tests/test_openai_chatcompletions_converter.py

@@ -416,8 +416,11 @@ def test_assistant_messages_in_history():
         ]
     )
 
-    # OUTPUT is [{'role': 'user', 'content': 'Hello'}, {'role': 'assistant', 'content': 'Hello?'}, {'role': 'user', 'content': 'What was my Name?'}]
+    assert messages == [
-    assert messages == [{'role': 'user', 'content': 'Hello'}, {'role': 'assistant', 'content': 'Hello?'}, {'role': 'user', 'content': 'What was my Name?'}]
+        {"role": "user", "content": "Hello"},
+        {"role": "assistant", "content": "Hello?"},
+        {"role": "user", "content": "What was my Name?"},
+    ]
     assert len(messages) == 3
     assert messages[0]["role"] == "user"
     assert messages[0]["content"] == "Hello"