error: missing required attribute 'message_type'
       help: Add message_type = "Message" to the macro attributes
 --> tests/ui/missing_message_type.rs:6:1
  |
6 | / #[dampen_app(
7 | |     ui_dir = "tests/fixtures/multi_view/src/ui",
8 | |     handler_variant = "Handler"
9 | | )]
  | |__^
  |
  = note: this error originates in the attribute macro `dampen_app` (in Nightly builds, run with -Z macro-backtrace for more info)
