update app.py

app.py

@@ -13,6 +13,8 @@ from langchain.callbacks.streaming_stdout import StreamingStdOutCallbackHandler
 import os
 from dotenv import load_dotenv
 import tempfile
+import os
+os.environ["REPLICATE_API_TOKEN"] = "r8_AA3K1fhDykqLa5M74E5V0w5ss1z0P9S3foWJl"
 
 load_dotenv()