From 867cc31bae5b494212bba890ab0402e50cfa36e9 Mon Sep 17 00:00:00 2001
From: Markus Reiter <me@reitermark.us>
Date: Mon, 24 Aug 2020 22:53:08 +0200
Subject: [PATCH] Document `Download`.

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

diff --git a/Library/Homebrew/cask/download.rb b/Library/Homebrew/cask/download.rb
index 4bd4e4426a..16c1dbd81c 100644
--- a/Library/Homebrew/cask/download.rb
+++ b/Library/Homebrew/cask/download.rb
@@ -6,6 +6,9 @@ require "cask/quarantine"
 require "cask/verify"
 
 module Cask
+  # A download corresponding to a {Cask}.
+  #
+  # @api private
   class Download
     attr_reader :cask