Feature

companion object Feature : 
    ApplicationFeature<Application, Configuration, MicrometerMetrics>

Micrometer feature installation object

activeGaugeName	`const val activeGaugeName: String` Active requests gauge name
key	`val key: AttributeKey<MicrometerMetrics>` Unique key that identifies a feature
requestTimerName	`const val requestTimerName: String` Request time timer name

fun install(
    pipeline: Application, 
    configure: Configuration.() -> Unit
): MicrometerMetrics

Feature installation script