pub(super) trait PartialGraphStat:
Send
+ Sync
+ 'static {
// Required methods
fn observe_barrier_latency(
&self,
epoch: EpochPair,
barrier_latency_secs: f64,
);
fn observe_barrier_num(
&self,
inflight_barrier_num: usize,
collected_barrier_num: usize,
);
}