From 92f77c8fb9c32f3ce2f7a5b8daa20bd901451aac Mon Sep 17 00:00:00 2001
From: Zachary S <zasample18+github@gmail.com>
Date: Sun, 28 Jul 2024 01:18:50 -0500
Subject: [PATCH] doc update

---
 derive/src/traits.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/derive/src/traits.rs b/derive/src/traits.rs
index 10e583e..c31ab43 100644
--- a/derive/src/traits.rs
+++ b/derive/src/traits.rs
@@ -44,6 +44,11 @@ pub trait Derivable {
   fn explicit_bounds_attribute_name() -> Option<&'static str> {
     None
   }
+
+  /// If this trait has a custom meaning for "perfect derive", this function
+  /// should be overridden to return `Some`.
+  ///
+  /// The default is "the fields of a struct; unions and enums not supported".
   fn perfect_derive_fields(input: &DeriveInput) -> Option<Fields> {
     None
   }