// extension with the CA bit set.  The API server will reject objects that
  // contain duplicate certificates, or that use PEM block headers.
  //
  // Users of ClusterTrustBundles, including Kubelet, are free to reorder and
  // deduplicate certificate blocks in this file according to their own logic,
  // as well as to drop PEM block headers and inter-block data.
  optional string trustBundle = 2;

// continuously for some time. How often to update the EventSeries is up to the event reporters.
// The default event reporter in "k8s.io/client-go/tools/events/event_broadcaster.go" shows
// how this struct is updated on heartbeats and can guide customized reporter implementations.
message EventSeries {
  // count is the number of occurrences in this series up to the last heartbeat time.
  optional int32 count = 1;