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https://github.com/hwchase17/langchain
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43 lines
1.5 KiB
Python
43 lines
1.5 KiB
Python
from langchain_community.llms import Replicate
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from langchain_core.prompts import ChatPromptTemplate
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# LLM
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replicate_id = "andreasjansson/llama-2-13b-chat-gguf:60ec5dda9ff9ee0b6f786c9d1157842e6ab3cc931139ad98fe99e08a35c5d4d4" # noqa: E501
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model = Replicate(
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model=replicate_id,
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model_kwargs={"temperature": 0.8, "max_length": 500, "top_p": 0.95},
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)
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# Prompt with output schema specification
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template = """You are an AI language model assistant. Your task is to generate 3 different versions of the given user /
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question to retrieve relevant documents from a vector database. By generating multiple perspectives on the user /
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question, your goal is to help the user overcome some of the limitations of distance-based similarity search. /
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Respond with json that adheres to the following jsonschema:
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{{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"type": "object",
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"properties": {{
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"question_1": {{
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"type": "string",
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"description": "First version of the user question."
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}},
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"question_2": {{
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"type": "string",
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"description": "Second version of the user question."
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}},
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"question_3": {{
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"type": "string",
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"description": "Third version of the user question."
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}}
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}},
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"required": ["question_1","question_2","question_3"],
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"additionalProperties": false
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}}""" # noqa: E501
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prompt = ChatPromptTemplate.from_messages(
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[("system", template), ("human", "{question}")]
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)
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# Chain
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chain = prompt | model
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