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9bf4115 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | """Shared chat-generation helper.
apply_chat_template returns a BatchEncoding (dict) on recent transformers, so it must be
passed to generate() as **kwargs, not positionally. Centralized here so every call site
(judge, curator, critique-revise, evalgate) is consistent.
"""
import torch
def chat_generate(model, tok, messages, max_new_tokens=512, do_sample=False, **kw):
enc = tok.apply_chat_template(messages, add_generation_prompt=True,
return_tensors="pt", return_dict=True)
enc = {k: v.to(model.device) for k, v in enc.items()}
with torch.no_grad():
out = model.generate(**enc, max_new_tokens=max_new_tokens, do_sample=do_sample, **kw)
return tok.decode(out[0][enc["input_ids"].shape[1]:], skip_special_tokens=True)
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