From 50ffd0debc3cc60fa0286fb6f437f4b0daa291e3 Mon Sep 17 00:00:00 2001
From: Max Chis <48846180+maxachis@users.noreply.github.com>
Date: Thu, 24 Jul 2025 16:05:16 -0400
Subject: [PATCH] Update DESIGN-PRINCIPLES.md

Add additional recommendation for type hinting.
---
 DESIGN-PRINCIPLES.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/DESIGN-PRINCIPLES.md b/DESIGN-PRINCIPLES.md
index 9fe02b8..e7fcca1 100644
--- a/DESIGN-PRINCIPLES.md
+++ b/DESIGN-PRINCIPLES.md
@@ -135,6 +135,7 @@ Note that these design principles are not followed consistently throughout any r
 ## Type Hinting
 
 - Type hints are necessary for all but the most trivial of functions (and often recommended even then).
+- If a function *does not* return anything, `-> None` should be provided as a type hint. The absence of a type hint makes it ambiguous whether it returns nothing or someone simply forgot to type hint.
 
 ## Inheritance