Fixing import error

app.py

@@ -24,10 +24,11 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
 def arxiv_fetch_paper_tool(arxiv_id : str) -> str:
     """ An Tool that would fetch research papers from ArXiV collection and parse it and return the PDF text
     Args:
-        arxiv_id: id for the arxiv paper
+        arxiv_id: id for the arxiv paper which would be like 2312.11805
     Returns:
-    text of the paper content and title of the paper
+        text of the paper content and title of the paper
     """
+    from langchain_community.document_loaders import ArxivLoader
     loader = ArxivLoader(query=arxiv_id)
     docs = loader.load()
     title = docs[0].metadata.get("title", "this paper")