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[Bugfix] Validate SamplingParam n is an int #8548

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merged 5 commits into from
Sep 20, 2024
Merged

[Bugfix] Validate SamplingParam n is an int #8548

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7bf973b
Enforce SamplingParam 'n' is an int
saumya-saran Sep 17, 2024
5548dfa
Merge remote-tracking branch 'upstream/main'
saumya-saran Sep 17, 2024
2f49b72
Remove extra space
saumya-saran Sep 17, 2024
6c19a10
Raise ValueError
saumya-saran Sep 18, 2024
386ac90
Line too long
saumya-saran Sep 19, 2024
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7 changes: 6 additions & 1 deletion vllm/sampling_params.py
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Original file line number Diff line number Diff line change
Expand Up @@ -273,9 +273,14 @@ def __post_init__(self) -> None:
self._all_stop_token_ids = set(self.stop_token_ids)

def _verify_args(self) -> None:
if not isinstance(self.n, int):
raise ValueError(f"n must be an int, but is of "
f"type {type(self.n)}")
if self.n < 1:
raise ValueError(f"n must be at least 1, got {self.n}.")
assert isinstance(self.best_of, int)
if not isinstance(self.best_of, int):
raise ValueError(f'best_of must be an int, but is of '
f'type {type(self.best_of)}')
if self.best_of < self.n:
raise ValueError(f"best_of must be greater than or equal to n, "
f"got n={self.n} and best_of={self.best_of}.")
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