diff --git a/src/helpers.ts b/src/helpers.ts
index e69de29..67f0717 100644
--- a/src/helpers.ts
+++ b/src/helpers.ts
@@ -0,0 +1,4 @@
+function canonicalize(item: string)
+{
+    return item.toLowerCase().replace(/ /g, '_');
+}
\ No newline at end of file