error: unexpected trailing tokens after named js! helper
       help: js! named helpers only accept `js!(helper_name, { ... })`, `js!(helper_name, "...")`, `js!(helper_name, once, { ... })`, or `js!(helper_name, once, "...")`
 --> tests/ui/js_named_helper_trailing_tokens.rs:6:8
  |
6 |     }, trailing);
  |        ^^^^^^^^
