elif self.reasoning_parser:
    delta_message = reasoning_parser.extract_reasoning_content_streaming(
        previous_text, current_text, delta_text,
        previous_token_ids, current_token_ids,
        output.token_ids,  # <-- RAW GenericSequence (BUG!)
    )


## Comparison with working code path (line 939, WITH tools):
elif tool_choice_auto and self.reasoning_parser:
    output_token_ids = as_list(output.token_ids)  # <-- Correctly converted
    delta_message = reasoning_parser.extract_reasoning_content_streaming(
        previous_text, current_text, delta_text,
        previous_token_ids, current_token_ids,
        output_token_ids,  # <-- Uses converted list
    )
The output.token_ids type is GenericSequence[int] which may be a NumPy array or other sequence type where the in operator behaves differently than with Python lists.

## Pattern Evidence
Every other similar code path uses as_list():
Line 742-744: current_token_ids = previous_token_ids + as_list(output.token_ids)
Line 746: current_token_ids = as_list(output.token_ids)
Line 881: output_token_ids = as_list(output.token_ids)
Line 939: output_token_ids = as_list(output.token_ids)
Line 1083: output_token_ids=as_list(output.token_ids)
Line 1034 is the ONLY place that passes output.token_ids directly.
## Fix
One-line change at serving_chat.py:1034:
- output.token_ids,
+ as_list(output.token_ids),


## Reproduction
# Start server
python -m vllm.entrypoints.openai.api_server \
  --model GLM-4.5-Air \
  --reasoning-parser glm45 \
  --enable-reasoning

# Test streaming WITHOUT tools (fails)
curl -X POST http://localhost:8000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{
    "model": "GLM-4.5-Air",
    "messages": [{"role": "user", "content": "What is 2+2?"}],
    "stream": true
  }'
# Result: <think> tags appear in content, reasoning_content is null

# Test streaming WITH tools (works)
curl -X POST http://localhost:8000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{
    "model": "GLM-4.5-Air",
    "messages": [{"role": "user", "content": "What is 2+2?"}],
    "tools": [{"type": "function", "function": {"name": "noop", "parameters": {}}}],
    "tool_choice": "none",
    "stream": true
  }'
# Result: reasoning_content correctly populated

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