Home/API reference/@imqueue/rpc/IMQMetricsServerOptions/queueLengthFormatter You're viewing archived documentation for @imqueue/rpc v2.1.0. APIs may differ from the current release. View the latest version ↗ IMQMetricsServerOptions.queueLengthFormatter property Signature: queueLengthFormatter?: (length: number, metricName: string) => string;