Module metric 

Structs

BackendMetric

MetricData

PeakEWMA

Copy from Sozu: https://github.com/sozu-proxy/sozu/blob/c92a92e47ce79a9dfe23530244dc0ce8604acbcd/lib/src/lib.rs#L975 exponentially weighted moving average with high sensibility to latency bursts

Enums

BackendProtocol

BackendStatus

MetricApiReq

MetricApiResp