Update app.py

app.py

@@ -16,8 +16,6 @@ from langchain.agents import Tool
 from langchain.memory import ConversationBufferMemory
 from langchain.text_splitter import CharacterTextSplitter
 from dotenv import load_dotenv
-from keybert import KeyBERT
-from sentence_transformers import CrossEncoder
 import google.generativeai as genai
 from typing import List
 from langchain_core.language_models import BaseLanguageModel
@@ -86,6 +84,9 @@ def load_environment():
         os.environ["HF_TOKEN"] = os.environ["HUGGINGFACEHUB_API_TOKEN"]
     genai.configure(api_key=os.environ["GOOGLE_API_KEY"])
 
+from keybert import KeyBERT
+from sentence_transformers import CrossEncoder
+
 def preload_modtran_document():
     global vectorstore_global
     embeddings = GeminiEmbeddings()