Static HEALTH_CHECKS 

pub static HEALTH_CHECKS: DistributedSlice<[fn() -> Box<dyn HealthCheck>]>

Link-time registry of health-check factories.

use rtb_app::app::App;
use rtb_app::linkme::distributed_slice;
use rtb_cli::health::{HealthCheck, HealthStatus, HEALTH_CHECKS};

struct MyCheck;

#[async_trait::async_trait]
impl HealthCheck for MyCheck {
    fn name(&self) -> &'static str {
        "my-check"
    }

    async fn check(&self, _app: &App) -> HealthStatus {
        HealthStatus::ok("everything is fine")
    }
}

#[distributed_slice(HEALTH_CHECKS)]
fn register() -> Box<dyn HealthCheck> { Box::new(MyCheck) }