Method generation

packages/server/src/api/routes.rs:206–213

(&self, udid: &str)

    }

    fn generation(&self, udid: &str) -> u64 {
        self.generations
            .lock()
            .unwrap_or_else(|poisoned| poisoned.into_inner())
            .get(udid)
            .copied()
            .unwrap_or(0)
    }

    fn begin_warming(&self, udid: &str, generation: u64) -> bool {
        let mut warming = self