Method register

nodedb/src/event/scheduler/registry.rs:25–29

(&self, def: ScheduleDef)

    }

    pub fn register(&self, def: ScheduleDef) {
        let key = (def.tenant_id, def.name.clone());
        let mut map = self.by_name.write().unwrap_or_else(|p| p.into_inner());
        map.insert(key, def);
    }

    pub fn unregister(&self, tenant_id: u64, name: &str) -> bool {
        let key = (tenant_id, name.to_string());