// documentation may explain to users how to interpret this data if needed.
  //
  // Setting this field is optional. It has a maximum size of 32 entries.
  // If null (or empty), it is assumed this allocation will be processed by a
  // single kubelet plugin with no ResourceHandle data attached. The name of
  // the kubelet plugin invoked will match the DriverName set in the
  // ResourceClaimStatus this AllocationResult is embedded in.
  //

  // 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

  optional int64 observedGeneration = 1;

  // DisruptedPods contains information about pods whose eviction was
  // processed by the API server eviction subresource handler but has not
  // yet been observed by the PodDisruptionBudget controller.
  // A pod will be in this map from the time when the API server processed the
  // eviction request to the time when the pod is seen by PDB controller

  // means "retaining all old ReplicaSets".
  // +optional
  optional int32 revisionHistoryLimit = 6;

  // Indicates that the deployment is paused and will not be processed by the
  // deployment controller.
  // +optional
  optional bool paused = 7;

  // DEPRECATED.
  // The config this deployment is rolling back to. Will be cleared after rollback is done.
  // +optional

  // +optional
  optional ObjectMetricSource object = 2;

  // pods refers to a metric describing each pod in the current scale target
  // (for example, transactions-processed-per-second).  The values will be
  // averaged together before being compared to the target value.
  // +optional
  optional PodsMetricSource pods = 3;

  // +optional
  optional ObjectMetricSource object = 2;

  // pods refers to a metric describing each pod in the current scale target
  // (for example, transactions-processed-per-second).  The values will be
  // averaged together before being compared to the target value.
  // +optional
  optional PodsMetricSource pods = 3;

  optional int64 observedGeneration = 1;

  // DisruptedPods contains information about pods whose eviction was
  // processed by the API server eviction subresource handler but has not
  // yet been observed by the PodDisruptionBudget controller.
  // A pod will be in this map from the time when the API server processed the
  // eviction request to the time when the pod is seen by PDB controller

  // +optional
  optional ObjectMetricSource object = 2;

  // pods refers to a metric describing each pod in the current scale target
  // (for example, transactions-processed-per-second).  The values will be
  // averaged together before being compared to the target value.
  // +optional
  optional PodsMetricSource pods = 3;

  // +optional
  optional ObjectMetricSource object = 2;

  // pods refers to a metric describing each pod in the current scale target
  // (for example, transactions-processed-per-second).  The values will be
  // averaged together before being compared to the target value.
  // +optional
  optional PodsMetricSource pods = 3;

  // If this value is nil, the default grace period will be used instead.
  // The grace period is the duration in seconds after the processes running in the carp are sent
  // a termination signal and the time when the processes are forcibly halted with a kill signal.
  // Set this value longer than the expected cleanup time for your process.
  // Defaults to 30 seconds.
  // +optional
  optional int64 terminationGracePeriodSeconds = 4;