metagpt/provider/openai_api.py 94行存在bug

[moseshu]

if hasattr(chunk, "usage"):
# Some services have usage as an attribute of the chunk, such as Fireworks
    usage = CompletionUsage(**chunk.usage)
usage会出现None的情况
最好加上
if chunk.usage:
   usage = CompletionUsage(**chunk.usage)

日志
ChatCompletionChunk(id='chatcmpl-B7OpXSFxuj3RCEYCnFslLUchlZDiJ', choices=[Choice(delta=ChoiceDelta(content=None, function_call=None, refusal=None, role=None, tool_calls=None), finish_reason='stop', index=0, logprobs=None)], created=1741103443, model='gpt-4-0613', object='chat.completion.chunk', service_tier='default', system_fingerprint=None, usage=None)