Update pipeline.py

pipeline.py

@@ -21,6 +21,7 @@ import multiprocessing
 import gspread
 from googleapiclient.discovery import build
 from googleapiclient.http import MediaFileUpload, MediaIoBaseDownload
+from google.oauth2.service_account import Credentials
 from oauth2client.service_account import ServiceAccountCredentials
 import io
 import json