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[Misc] Minor type annotation fix #3716

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Merged
WoosukKwon merged 1 commit into from
Mar 29, 2024
Merged

[Misc] Minor type annotation fix #3716

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3 changes: 2 additions & 1 deletion vllm/attention/selector.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
from functools import lru_cache
from typing import Type

import torch

Expand All @@ -10,7 +11,7 @@


@lru_cache(maxsize=None)
def get_attn_backend(dtype: torch.dtype) -> AttentionBackend:
def get_attn_backend(dtype: torch.dtype) -> Type[AttentionBackend]:
if _can_use_flash_attn(dtype):
logger.info("Using FlashAttention backend.")
from vllm.attention.backends.flash_attn import ( # noqa: F401
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