fix(hiccup): serialize() args

packages/hiccup/src/serialize.ts

@@ -83,13 +83,13 @@ import { escape } from "./escape";
  * will have an autogenerated `key` attribute injected. If `span` is
  * enabled, `keys` will be enabled by default too.
  *
- * @param tree elements / component tree
+ * @param tree hiccup elements / component tree
  * @param ctx arbitrary user context object
  * @param escape auto-escape entities
  * @param span use spans for text content
  * @param keys attach key attribs
  */
-export const serialize = (tree: any[], ctx?: any, escape = false, span = false, keys = span, path = [0]) =>
+export const serialize = (tree: any, ctx?: any, escape = false, span = false, keys = span, path = [0]) =>
     _serialize(tree, ctx, escape, span, keys, path);
 
 const _serialize = (tree: any, ctx: any, esc: boolean, span: boolean, keys: boolean, path: any[]) => {