// node.
message CSIStorageCapacity {
  // Standard object's metadata. The name has no particular meaning. It must be
  // be a DNS subdomain (dots allowed, 253 characters). To ensure that
  // there are no conflicts with other CSI drivers on the cluster, the recommendation
  // is to use csisc-<uuid>, a generated name, or a reverse-domain name which ends
  // with the unique CSI driver name.
  //
  // Objects are namespaced.
  //