// APIGroup is the group for the resource being referenced
  optional string apiGroup = 1;

  // Kind is the type of resource being referenced
  optional string kind = 2;

  // Name is the name of resource being referenced
  optional string name = 3;
}

// Subject contains a reference to the object or user identities a role binding applies to.  This can either hold a direct API object reference,

  repeated FlowSchema items = 2;
}

// FlowSchemaSpec describes how the FlowSchema's specification looks like.
message FlowSchemaSpec {
  // `priorityLevelConfiguration` should reference a PriorityLevelConfiguration in the cluster. If the reference cannot
  // be resolved, the FlowSchema will be ignored and marked as invalid in its status.
  // Required.
  optional PriorityLevelConfigurationReference priorityLevelConfiguration = 1;

  repeated FlowSchema items = 2;
}

// FlowSchemaSpec describes how the FlowSchema's specification looks like.
message FlowSchemaSpec {
  // `priorityLevelConfiguration` should reference a PriorityLevelConfiguration in the cluster. If the reference cannot
  // be resolved, the FlowSchema will be ignored and marked as invalid in its status.
  // Required.
  optional PriorityLevelConfigurationReference priorityLevelConfiguration = 1;

  // Kind is the API kind the resources belong to.
  // Required.
  optional string kind = 2;
}

// ParamRef references a parameter resource
// +structType=atomic
message ParamRef {
  // Name of the resource being referenced.
  optional string name = 1;

  // Namespace of the referenced resource.
  // Should be empty for the cluster-scoped resources
  // +optional
  optional string namespace = 2;
}

  // items is the list of horizontal pod autoscaler objects.
  repeated HorizontalPodAutoscaler items = 2;
}

// specification of a horizontal pod autoscaler.
message HorizontalPodAutoscalerSpec {
  // reference to scaled resource; horizontal pod autoscaler will learn the current resource consumption
  // and will set the desired number of pods by using its Scale subresource.
  optional CrossVersionObjectReference scaleTargetRef = 1;

  // "web" with index number "3" would be named "web-3".
  optional k8s.io.api.core.v1.PodTemplateSpec template = 3;

  // volumeClaimTemplates is a list of claims that pods are allowed to reference.
  // The StatefulSet controller is responsible for mapping network identities to
  // claims in a way that maintains the identity of a pod. Every claim in

// The RuntimeClass is used to determine which container runtime is used to run
// all containers in a pod. RuntimeClasses are manually defined by a
// user or cluster provisioner, and referenced in the PodSpec. The Kubelet is
// responsible for resolving the RuntimeClassName reference before running the
// pod.  For more details, see
// https://kubernetes.io/docs/concepts/containers/runtime-class/
message RuntimeClass {

// all containers in a pod. RuntimeClasses are (currently) manually defined by a
// user or cluster provisioner, and referenced in the PodSpec. The Kubelet is
// responsible for resolving the RuntimeClassName reference before running the
// pod.  For more details, see
// https://git.k8s.io/enhancements/keps/sig-node/585-runtime-class
message RuntimeClass {

  // APIGroup is the group for the resource being referenced
  optional string apiGroup = 1;

  // Kind is the type of resource being referenced
  optional string kind = 2;

  // Name is the name of resource being referenced
  optional string name = 3;
}

// Subject contains a reference to the object or user identities a role binding applies to.  This can either hold a direct API object reference,

  // APIGroup is the group for the resource being referenced
  optional string apiGroup = 1;

  // Kind is the type of resource being referenced
  optional string kind = 2;

  // Name is the name of resource being referenced
  optional string name = 3;
}

// Subject contains a reference to the object or user identities a role binding applies to.  This can either hold a direct API object reference,