pub trait CpuController: Controller {
// Required methods
fn shares(&self) -> Box<dyn AttrFile<usize> + '_>;
fn stat(&self) -> Box<dyn ReadAttr<Stat> + '_>;
fn cfs_period_us(&self) -> Box<dyn AttrFile<Duration> + '_>;
fn cfs_quota_us(&self) -> Box<dyn AttrFile<Duration> + '_>;
}