fix(review): add manual override comments to auto-generated type files

Note that logprobs fields were manually changed to Optional in the
auto-generated files, referencing issue #2489.  Also fix import sorting
in the test file.

Refs: #2914

Author: giulio-leone

src/openai/types/responses/response_text_delta_event.py

@@ -1,4 +1,6 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
+# NOTE: logprobs field manually changed to Optional to support non-OpenAI providers
+# that may not include logprobs in streaming responses. See #2489.
 
 from typing import List, Optional
 from typing_extensions import Literal

src/openai/types/responses/response_text_done_event.py

@@ -1,4 +1,6 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
+# NOTE: logprobs field manually changed to Optional to support non-OpenAI providers
+# that may not include logprobs in streaming responses. See #2489.
 
 from typing import List, Optional
 from typing_extensions import Literal

tests/test_response_event_logprobs.py

@@ -4,9 +4,8 @@
 Non-OpenAI providers may not include logprobs in streaming responses.
 """
 
-from openai.types.responses.response_text_delta_event import ResponseTextDeltaEvent
 from openai.types.responses.response_text_done_event import ResponseTextDoneEvent
-
+from openai.types.responses.response_text_delta_event import ResponseTextDeltaEvent
 
 _DELTA_BASE = {
     "content_index": 0,