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-rw-r--r--rag/llm/ollama_generator.py76
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diff --git a/rag/llm/ollama_generator.py b/rag/llm/ollama_generator.py
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--- a/rag/llm/ollama_generator.py
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-import os
-from dataclasses import dataclass
-from typing import Any, Generator, List
-
-import ollama
-from loguru import logger as log
-
-try:
- from rag.db.vector import Document
-except ModuleNotFoundError:
- from db.vector import Document
-
-
-@dataclass
-class Prompt:
- query: str
- documents: List[Document]
-
-
-SYSTEM_PROMPT = (
- "# System Preamble"
- "## Basic Rules"
- "When you answer the user's requests, you cite your sources in your answers, according to those instructions."
- "Answer the following question using the provided context.\n"
- "## Style Guide"
- "Unless the user asks for a different style of answer, you should answer "
- "in full sentences, using proper grammar and spelling."
-)
-
-
-class OllamaGenerator:
- def __init__(self) -> None:
- self.model = os.environ["GENERATOR_MODEL"]
-
- def __context(self, documents: List[Document]) -> str:
- results = [
- f"Document: {i}\ntitle: {doc.title}\n{doc.text}"
- for i, doc in enumerate(documents)
- ]
- return "\n".join(results)
-
- def __metaprompt(self, prompt: Prompt) -> str:
- # Include sources
- metaprompt = (
- f'Question: "{prompt.query.strip()}"\n\n'
- "Context:\n"
- "<result>\n"
- f"{self.__context(prompt.documents)}\n\n"
- "</result>\n"
- "Carefully perform the following instructions, in order, starting each "
- "with a new line.\n"
- "Firstly, Decide which of the retrieved documents are relevant to the "
- "user's last input by writing 'Relevant Documents:' followed by "
- "comma-separated list of document numbers.\n If none are relevant, you "
- "should instead write 'None'.\n"
- "Secondly, Decide which of the retrieved documents contain facts that "
- "should be cited in a good answer to the user's last input by writing "
- "'Cited Documents:' followed a comma-separated list of document numbers. "
- "If you dont want to cite any of them, you should instead write 'None'.\n"
- "Thirdly, Write 'Answer:' followed by a response to the user's last input "
- "in high quality natural english. Use the retrieved documents to help you. "
- "Do not insert any citations or grounding markup.\n"
- "Finally, Write 'Grounded answer:' followed by a response to the user's "
- "last input in high quality natural english. Use the symbols <co: doc> and "
- "</co: doc> to indicate when a fact comes from a document in the search "
- "result, e.g <co: 0>my fact</co: 0> for a fact from document 0."
- )
- return metaprompt
-
- def generate(self, prompt: Prompt) -> Generator[Any, Any, Any]:
- log.debug("Generating answer...")
- metaprompt = self.__metaprompt(prompt)
- for chunk in ollama.generate(
- model=self.model, prompt=metaprompt, system=SYSTEM_PROMPT, stream=True
- ):
- yield chunk