Update app.py

app.py

@@ -6,6 +6,7 @@ import pandas as pd
 
 from llama_index.core.workflow import Context
 from llama_index.core.agent.workflow import AgentWorkflow
+from llama_index.llms.huggingface_api import HuggingFaceInferenceAPI
 from youtube_tool import youtube_transcript_tool, youtube_transcript_snippet_tool
 from multiple_tools import round_to_two_decimals_tool, text_inverter_tool, google_web_search_tool, wikipedia_search_tool