diff --git a/context_chat_backend/controller.py b/context_chat_backend/controller.py
index 80437f2..d8e43d2 100644
--- a/context_chat_backend/controller.py
+++ b/context_chat_backend/controller.py
@@ -1,6 +1,4 @@
-import time
 
-import time
 
 from os import getenv
 from typing import Annotated
@@ -9,7 +7,6 @@
 from fastapi import BackgroundTasks, Body, FastAPI, Request, UploadFile
 from langchain.llms.base import LLM
 from pydantic import BaseModel, FieldValidationInfo, field_validator
-from datetime import datetime
 
 from .chain import ScopeType, embed_sources, process_query, process_scoped_query
 from .download import download_all_models
@@ -191,7 +188,7 @@ def _(userId: Annotated[str, Body()], providerKey: Annotated[str, Body()]):
 		return JSONResponse('Error: VectorDB delete failed, check vectordb logs for more info.', 400)
 
 	return JSONResponse('All valid sources deleted')
-    
+
 
 @app.put('/loadSources')
 @enabled_guard(app)
diff --git a/requirements_cuda.txt b/requirements_cuda.txt
index 9f52566..bf8dd2e 100644
--- a/requirements_cuda.txt
+++ b/requirements_cuda.txt
@@ -153,4 +153,4 @@ zipp==3.17.0
 torch==2.2.0
 torchaudio==2.2.0
 torchvision==0.17.0
-ctransformers[cuda]==0.2.27
\ No newline at end of file
+ctransformers[cuda]==0.2.27