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Correct type annotation for quantize_4bit #994

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Merged
Titus-von-Koeller merged 1 commit into from
Jan 29, 2024
Merged

Correct type annotation for quantize_4bit #994

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11 changes: 10 additions & 1 deletion bitsandbytes/functional.py
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Original file line number Diff line number Diff line change
Expand Up @@ -890,7 +890,16 @@ def quantize_fp4(A: Tensor, absmax: Tensor = None, out: Tensor = None, blocksize
def quantize_nf4(A: Tensor, absmax: Tensor = None, out: Tensor = None, blocksize=64, compress_statistics=False, quant_storage=torch.uint8):
return quantize_4bit(A, absmax, out, blocksize, compress_statistics, 'nf4', quant_storage)

def quantize_4bit(A: Tensor, absmax: Tensor = None, out: Tensor = None, blocksize=64, compress_statistics=False, quant_type='fp4', quant_storage=torch.uint8) -> (Tensor, QuantState):

def quantize_4bit(
A: Tensor,
absmax: Tensor = None,
out: Tensor = None,
blocksize=64,
compress_statistics=False,
quant_type='fp4',
quant_storage=torch.uint8,
) -> Tuple[Tensor, QuantState]:
"""
Quantize tensor A in blocks of 4-bit values.

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