code: func (a *HistoricalApi) namespaceAggregations(request *restful.Request, response *restful.Response) {
  	key := core.HistoricalKey{
  		ObjectType:    core.MetricSetTypeNamespace,
  		NamespaceName: request.PathParameter("namespace-name"),
  	}
  	a.processAggregationRequest(key, request, response)
  }
docs: // namespaceAggregations returns a metric timeseries for a metric of the Namespace entity.