From 447e8ffe4c9e9c3233a766cb15ee1ea1ac5e50b9 Mon Sep 17 00:00:00 2001
From: facelessuser <faceless.shop@gmail.com>
Date: Sat, 30 Nov 2024 08:40:00 -0700
Subject: [PATCH] Add missing docstring

---
 coloraide/interpolate/__init__.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/coloraide/interpolate/__init__.py b/coloraide/interpolate/__init__.py
index b80951ba..043e0a96 100644
--- a/coloraide/interpolate/__init__.py
+++ b/coloraide/interpolate/__init__.py
@@ -320,6 +320,7 @@ def steps(
         return [i[1] for i in ret]
 
     def premultiply(self, coords: Vector, alpha: float | None = None) -> None:
+        """Apply premultiplication to semi-transparent colors."""
 
         if alpha is not None:
             coords[-1] = alpha