MetricId type
Metric Id on which the throttle limit should be set, MetricId can be discovered by hovering over Metric in the Metrics section of Event Hub Namespace inside Azure Portal
KnownMetricId can be used interchangeably with MetricId,
this enum contains the known values that the service supports.
Known values supported by the service
IncomingBytes
OutgoingBytes
IncomingMessages
OutgoingMessages
type MetricId = string