Add a file download

app.py

@@ -39,3 +39,18 @@ predict_and_write(
     val_cols=["obs" "exp" "pval"],
     # keep_zeros,
 )
+
+# Print and list the files
+import os
+
+st.write("Files created:")
+st.write(os.listdir("results"))
+
+# Offer a download
+st.write("Download the results")
+st.download_button(
+    label="Download Results",
+    data="results",
+    file_name="results.zip",
+    mime="application/zip",
+)