#[task_handler]Expand description
ยงtask_handler
Generates basic task-handling methods (enqueue_task and list_tasks) for a server handler
using a shared [OperationProcessor]. The default processor expression assumes a
self.processor field holding an Arc<Mutex<OperationProcessor>>, but it can be customized
via #[task_handler(processor = ...)]. Because the macro captures self inside spawned
futures, the handler type must implement Clone.