Update app.py

app.py

@@ -5,7 +5,7 @@ import langchain_huggingface
 import huggingface_hub
 from langchain_community.document_loaders import YoutubeLoader
 from langchain_huggingface import HuggingFaceEndpoint,ChatHuggingFace
-os.environ['HUGGINGFACEHUB_API_TOKEN'] = os.getenv("hf")
+os.environ['HUGGINGFACEHUB_API_TOKEN'] = os.getenv("Utube")
 os.environ['HF_TOKEN'] = os.getenv("hf")
 meta_llm=HuggingFaceEndpoint(repo_id="meta-llama/Llama-3.1-8B-Instruct",
                              provider="nebius",