Fix the "AttributeError: 'AsyncLLM' object has no attribute 'engine'"… #3716
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This makes vllm_worker work out of the box with vllm v0.8.3, which opens FastChat to work with all the recent models!
@merrymercy it's just a environment variable
Why are these changes needed?
VLLM changed since v.0.8.0, and there's a compatibility mode which is set with the
VLLM_USE_V1environment variable. If you disable it, legacy code runs again.Related issue number (if applicable)
Closes #3704
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format.shto lint the changes in this PR.