From afab15097c5e75b11ab666d62d98ab788d6dd950 Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Tue, 14 Jan 2025 17:19:41 -0500
Subject: [PATCH] types

---
 packages/svelte/elements.d.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/svelte/elements.d.ts b/packages/svelte/elements.d.ts
index 604403f0a2..7b67e2a07e 100644
--- a/packages/svelte/elements.d.ts
+++ b/packages/svelte/elements.d.ts
@@ -859,6 +859,9 @@ export interface HTMLAttributes<T extends EventTarget> extends AriaAttributes, D
 
 	// allow any data- attribute
 	[key: `data-${string}`]: any;
+
+	// allow any attachment
+	[key: symbol]: (node: T) => void | (() => void);
 }
 
 export type HTMLAttributeAnchorTarget = '_self' | '_blank' | '_parent' | '_top' | (string & {});