iamSubsystem              MetricSubsystem = "iam"
	kmsSubsystem              MetricSubsystem = "kms"
	notifySubsystem           MetricSubsystem = "notify"
	lambdaSubsystem           MetricSubsystem = "lambda"
	auditSubsystem            MetricSubsystem = "audit"
	webhookSubsystem          MetricSubsystem = "webhook"
)

// MetricName are the individual names for the metric.
type MetricName string

const (