langchain/chains/summarize/refine_prompts.py

from langchain_core.prompts import PromptTemplate

REFINE_PROMPT_TMPL = """\
Your job is to produce a final summary.
We have provided an existing summary up to a certain point: {existing_answer}
We have the opportunity to refine the existing summary (only if needed) with some more context below.
------------
{text}
------------
Given the new context, refine the original summary.
If the context isn't useful, return the original summary.\
"""  # noqa: E501
REFINE_PROMPT = PromptTemplate.from_template(REFINE_PROMPT_TMPL)


prompt_template = """Write a concise summary of the following:


"{text}"


CONCISE SUMMARY:"""
PROMPT = PromptTemplate.from_template(prompt_template)