forked from phoenix-oss/llama-stack-mirror
5966079770
# What does this PR do?
This fixes the following issue on the server side when the tool call
response contains empty args. This happens when running
`examples.agents.e2e_loop_with_client_tools` but `get_ticker_data`
returns `[]`:
```
Traceback (most recent call last):
File "/home/yutang/repos/llama-stack/llama_stack/distribution/server/server.py", line 208, in sse_generator
async for item in event_gen:
File "/home/yutang/repos/llama-stack/llama_stack/providers/inline/agents/meta_reference/agents.py", line 169, in _create_agent_turn_streaming
async for event in agent.create_and_execute_turn(request):
File "/home/yutang/repos/llama-stack/llama_stack/providers/inline/agents/meta_reference/agent_instance.py", line 189, in create_and_execute_turn
async for chunk in self.run(
File "/home/yutang/repos/llama-stack/llama_stack/providers/inline/agents/meta_reference/agent_instance.py", line 258, in run
async for res in self._run(
File "/home/yutang/repos/llama-stack/llama_stack/providers/inline/agents/meta_reference/agent_instance.py", line 499, in _run
async for chunk in await self.inference_api.chat_completion(
File "/home/yutang/repos/llama-stack/llama_stack/distribution/routers/routers.py", line 182, in <genexpr>
return (chunk async for chunk in await provider.chat_completion(**params))
File "/home/yutang/repos/llama-stack/llama_stack/providers/remote/inference/vllm/vllm.py", line 296, in _stream_chat_completion
async for chunk in res:
File "/home/yutang/repos/llama-stack/llama_stack/providers/remote/inference/vllm/vllm.py", line 162, in _process_vllm_chat_completion_stream_response
arguments=json.loads(tool_call_buf.arguments),
File "/home/yutang/.conda/envs/distribution-myenv/lib/python3.10/json/__init__.py", line 346, in loads
return _default_decoder.decode(s)
File "/home/yutang/.conda/envs/distribution-myenv/lib/python3.10/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/home/yutang/.conda/envs/distribution-myenv/lib/python3.10/json/decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
```
## Test Plan
All existing tests in
`tests/client-sdk/inference/test_text_inference.py` passed.
[//]: # (## Documentation)
---------
Signed-off-by: Yuan Tang <terrytangyuan@gmail.com>
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|---|---|---|
| .. | ||
| agents | ||
| datasetio | ||
| inference | ||
| safety | ||
| tool_runtime | ||
| vector_io | ||
| __init__.py | ||