Update functions_hf.py

functions_hf.py

@@ -1,7 +1,5 @@
 from langchain_community.utilities import SQLDatabase
 from langchain import HuggingFaceHub
-from transformers import AutoTokenizer, AutoModelForCausalLM
-import torch
 from langchain_core.prompts import ChatPromptTemplate
 from langchain_core.output_parsers import StrOutputParser
 from langchain_core.runnables import RunnablePassthrough
@@ -10,7 +8,6 @@ from typing import Dict, List
 
 llm = HuggingFaceHub(repo_id="Qwen/Qwen2.5-72B-Instruct", model_kwargs={"temperature":0, "max_length":64})
 
-
 # Initialize database connection
 db = SQLDatabase.from_uri("sqlite:///Spring_2025_courses.db", sample_rows_in_table_info=0)