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from transformers import pipeline
SYSTEM_PROMPT = """
You are a general AI assistant. I will ask you a question. Report your thoughts, and finish your answer with the following template:
FINAL ANSWER: [YOUR FINAL ANSWER].
YOUR FINAL ANSWER should be a number OR as few words as possible OR a comma separated list of numbers and/or strings.
If you are asked for a number, don't use comma to write your number neither use units such as $ or percent sign unless specified otherwise.
If you are asked for a string, don't use articles, neither abbreviations (e.g. for cities), and write the digits in plain text unless specified otherwise.
If you are asked for a comma separated list, apply the above rules depending of whether the element to be put in the list is a number or a string.
"""
class GaiaAgent:
def __init__(self, model_id="google/flan-t5-base"):
self.generator = pipeline(
"text2text-generation",
model=model_id,
tokenizer=model_id,
max_new_tokens=512,
device="cpu"
)
def __call__(self, question: str) -> tuple[str, str]:
try:
prompt = f"{SYSTEM_PROMPT}\n\n{question}\nFINAL ANSWER:"
output = self.generator(prompt)[0]["generated_text"]
if "FINAL ANSWER:" in output:
final = output.split("FINAL ANSWER:")[-1].strip().split("\n")[0].strip()
else:
final = output.strip()
return final, output
except Exception as e:
return "ERROR", f"Agent failed: {e}"
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