Attribute Macro fallback_command 

#[fallback_command]

Defines a function that is called when no other bitbar::command matches.

• It must take as arguments the subcommand name as a String and the remaining arguments as a Vec<String>.
• It must return a member of the bitbar::CommandOutput trait.
• It can be a fn or an async fn. In the latter case, tokio’s threaded runtime will be used. (This requires the tokio feature, which is on by default.)

If this attribute isn’t used, bitbar will handle unknown subcommands by sending a notification and exiting.

The function must also be registered via #[bitbar::main(fallback_command = "...")].