Update main.py

main.py

@@ -1,11 +1,8 @@
 from langchain_core.prompts import ChatPromptTemplate
 from langchain_google_genai import ChatGoogleGenerativeAI
 from langchain_community.document_loaders import DirectoryLoader
-from langchain_text_splitters import CharacterTextSplitter
 from langchain_community.document_loaders import PyPDFLoader
-from langchain_huggingface import HuggingFaceEmbeddings
 from typing import List
-from langchain_chroma import Chroma
 from typing_extensions import TypedDict
 from typing import Annotated
 from langgraph.graph.message import AnyMessage, add_messages
@@ -48,11 +45,11 @@ file_path_prob = "./documents/prob.pdf"
 loader_prob = PyPDFLoader(file_path_prob)
 prob = loader_prob.load()
 
-file_path_guide = "./documents/prob.pdf"
+file_path_guide = "./documents/guide.pdf"
 loader_guide = PyPDFLoader(file_path_guide)
 guide = loader_guide.load()
 
-file_path_QR = "./documents/prob.pdf"
+file_path_QR = "./documents/QR.pdf"
 loader_QR = PyPDFLoader(file_path_QR)
 QR = loader_QR.load()