diff --git a/mev_inspect/string_io.py b/mev_inspect/string_io.py
index 1c0a40d..37efb5f 100644
--- a/mev_inspect/string_io.py
+++ b/mev_inspect/string_io.py
@@ -1,3 +1,5 @@
+"""This is taken from https://hakibenita.com/fast-load-data-python-postgresql"""
+
 import io
 from typing import Iterator, Optional