-# Your functions are expected to return a (key, value) tuple or they will be treated as
-# if they don't exist (ie, the line will go through unhindered). Returning an value which
-# is boolean False will remove the offending line from the final ICS (unless it's a None).
+# Your functions are expected to return a (key, value) tuple or they will be
+# treated as if they don't exist (ie, the line will go through unhindered).
+# Returning any boolean false value other than a None will return the line from
+# the final iCalendar file