// +listType=atomic
  optional bytes request = 1;

  // signerName indicates the requested signer, and is a qualified name.
  //
  // List/watch requests for CertificateSigningRequests can filter on this field using a "spec.signerName=NAME" fieldSelector.
  //
  // Well-known Kubernetes signers are:

  // in this list can only be removed.
  // Finalizers may be processed and removed in any order.  Order is NOT enforced
  // because it introduces significant risk of stuck finalizers.
  // finalizers is a shared field, any actor with permission can reorder it.
  // If the finalizer list is processed in order, then this can lead to a situation
  // in which the component responsible for the first finalizer in the list is

  optional k8s.io.apimachinery.pkg.apis.meta.v1.MicroTime acquireTime = 3;

  // renewTime is a time when the current holder of a lease has last
  // updated the lease.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.MicroTime renewTime = 4;

  // leaseTransitions is the number of transitions of a lease between
  // holders.
  // +optional
  optional int32 leaseTransitions = 5;

  // webhook. Match conditions filter requests that have already been matched by the rules,
  // namespaceSelector, and objectSelector. An empty list of matchConditions matches all requests.
  // There are a maximum of 64 match conditions allowed.
  //
  // The exact matching logic is (in order):
  //   1. If ANY matchCondition evaluates to FALSE, the webhook is skipped.

// capacity-aware scheduling with CSIDriverSpec.StorageCapacity. The scheduler
// compares the MaximumVolumeSize against the requested size of pending volumes
// to filter out unsuitable nodes. If MaximumVolumeSize is unset, it falls back
// to a comparison against the less precise Capacity. If that is also unset,
// the scheduler assumes that capacity is insufficient and tries some other
// node.

  optional k8s.io.apimachinery.pkg.apis.meta.v1.MicroTime acquireTime = 3;

  // renewTime is a time when the current holder of a lease has last
  // updated the lease.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.MicroTime renewTime = 4;

  // leaseTransitions is the number of transitions of a lease between
  // holders.
  // +optional
  optional int32 leaseTransitions = 5;

  // `example.com:foo:v1`.
  //
  // If signerName is empty, then the ClusterTrustBundle object's name must
  // not have such a prefix.
  //
  // List/watch requests for ClusterTrustBundles can filter on this field
  // using a `spec.signerName=NAME` field selector.
  //
  // +optional
  optional string signerName = 1;

  // trustBundle contains the individual X.509 trust anchors for this

// capacity-aware scheduling with CSIDriverSpec.StorageCapacity. The scheduler
// compares the MaximumVolumeSize against the requested size of pending volumes
// to filter out unsuitable nodes. If MaximumVolumeSize is unset, it falls back
// to a comparison against the less precise Capacity. If that is also unset,
// the scheduler assumes that capacity is insufficient and tries some other
// node.

  // plugin will proactively rotate the service account token. The kubelet will
  // start trying to rotate the token if the token is older than 80 percent of
  // its time to live or if the token is older than 24 hours.Defaults to 1 hour
  // and must be at least 10 minutes.
  // +optional
  optional int64 expirationSeconds = 2;