backport small upstream improvements #16
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tmm1
commented
Oct 17, 2024
tmm1
commented
- Avoid calling byte_pair_encode for existing tokens
- Inline custom mapping function in _byte_pair_merge
- upstream fixups to byte_pair_encode
This was byte_pair_encode can be optimized further, assuming we'll always have at least 2 tokens (cherry-picked from openai/tiktoken@b4c687e)
(cherry-picked from openai/tiktoken@6defed5)
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