'Declaration
<EventMetricValueAttribute("startTimestamp", SummaryFunction.Count, "", Caption="Started", Description="Timestamp the request started")> <JsonIgnoreAttribute()> Public ReadOnly Property StartTimestamp As DateTimeOffset
[EventMetricValue("startTimestamp", SummaryFunction.Count, "", Caption="Started", Description="Timestamp the request started")] [JsonIgnore()] public DateTimeOffset StartTimestamp {get;}