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[V1] Fix _pickle.PicklingError: Can't pickle <class 'transformers_modules.deepseek-ai.DeepSeek-V2-Lite... #18640

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Merged
merged 1 commit into from
May 25, 2025
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[V1] Fix _pickle.PicklingError: Can't pickle <class 'transformers_modules.deepseek-ai.DeepSeek-V2-Lite... #18640

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5 changes: 5 additions & 0 deletions vllm/v1/engine/async_llm.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,8 @@
from vllm.pooling_params import PoolingParams
from vllm.prompt_adapter.request import PromptAdapterRequest
from vllm.sampling_params import SamplingParams
from vllm.transformers_utils.config import (
maybe_register_config_serialize_by_value)
from vllm.transformers_utils.tokenizer import AnyTokenizer
from vllm.transformers_utils.tokenizer_group import init_tokenizer_from_configs
from vllm.usage.usage_lib import UsageContext
Expand Down Expand Up @@ -80,6 +82,9 @@ def __init__(
"AsyncLLMEngine.from_vllm_config(...) or explicitly set "
"VLLM_USE_V1=0 or 1 and report this issue on Github.")

# Ensure we can serialize custom transformer configs
maybe_register_config_serialize_by_value()

self.model_config = vllm_config.model_config
self.vllm_config = vllm_config
self.log_requests = log_requests
Expand Down
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