Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,12 +1,7 @@
-import streamlit_extras
+import streamlit as st
 
-from streamlit_extras.pdf_viewer import *
-
-def example():
-    """Example usage of the PDF viewer component."""
-    pdf_viewer(
-        "https://sawyerela.weebly.com/uploads/5/8/8/1/5881058/the_giver__giver_quartet_book_-_lois_lowry.pdf",
-    )
-
-
-example()
+from streamlit_extras.pdf_viewer import pdf_viewer
+   
+pdf_viewer(
+    "https://sawyerela.weebly.com/uploads/5/8/8/1/5881058/the_giver__giver_quartet_book_-_lois_lowry.pdf",
+)