langchain_folder/main.py

from langchain_core.prompts import PromptTemplate
from langchain_folder.llm_helper import llm

def ReturnKeywordsfromPrompt(query):
    prompt = """You are a model and your job is the extract the keywords from the query which will be passed to you.
    For Eg: If the query is -> Provide me with a combined dataset for house price prediction.
    Your answer should be 'house price'. Do not return anything else, just the keywords, note that the queries can be for various datasets,
    not jsut for house price prediction, go it?
    Query: {query}"""

    pt = PromptTemplate.from_template(prompt)
    chain = pt | llm
    response = chain.invoke({'query': query})
    return response.content