fix

Author: Rich-Harris

packages/kit/src/core/sync/write_types/index.js

@@ -217,7 +217,7 @@ function update_types(config, routes, route, to_delete = new Set()) {
 			`type OptionalUnion<U extends Record<string, any>, A extends keyof U = U extends U ? keyof U : never> = U extends unknown ? { [P in Exclude<A, keyof U>]?: never } & U : never;`,
 
 			// Re-export `Snapshot` from @sveltejs/kit — in future we could use this to infer <T> from the return type of `snapshot.capture`
-			`export type Snapshot<T> = Kit.Snapshot<T>;`
+			`export type Snapshot<T = any> = Kit.Snapshot<T>;`
 		);
 	}