optional string runtimeHandler = 1;

  // overhead represents the resource overhead associated with running a pod for a
  // given RuntimeClass. For more details, see
  // https://git.k8s.io/enhancements/keps/sig-node/688-pod-overhead/README.md
  // +optional
  optional Overhead overhead = 2;

  // scheduling holds the scheduling constraints to ensure that pods running
  // with this RuntimeClass are scheduled to nodes that support it.

  optional string handler = 2;

  // overhead represents the resource overhead associated with running a pod for a
  // given RuntimeClass. For more details, see
  // https://git.k8s.io/enhancements/keps/sig-node/688-pod-overhead/README.md
  // +optional
  optional Overhead overhead = 3;

  // scheduling holds the scheduling constraints to ensure that pods running
  // with this RuntimeClass are scheduled to nodes that support it.

  // defined in the corresponding RuntimeClass, otherwise it will remain unset and treated as zero.
  // More info: https://git.k8s.io/enhancements/keps/sig-node/688-pod-overhead/README.md
  // +optional
  map<string, k8s.io.apimachinery.pkg.api.resource.Quantity> overhead = 32;

  // TopologySpreadConstraints describes how a group of pods ought to spread across topology