From 78b09a278d1571d5fa6c225c901584f0943f0b7e Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Mon, 17 Aug 2020 02:58:03 +0200
Subject: [PATCH] Document `Checksum`.

---
 Library/Homebrew/checksum.rb | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Library/Homebrew/checksum.rb b/Library/Homebrew/checksum.rb
index fe0960df4a..84c6c62342 100644
--- a/Library/Homebrew/checksum.rb
+++ b/Library/Homebrew/checksum.rb
@@ -1,5 +1,8 @@
 # frozen_string_literal: true
 
+# A formula's checksum.
+#
+# @api private
 class Checksum
   extend Forwardable