If the operator is Exists or DoesNotExist, the values
                              array must be empty. This array is replaced during a
                              strategic merge patch.
                            items:
                              type: string
                            type: array
                        required:
                        - key

  // +optional
  optional ListMeta metadata = 1;

  // items contains each of the included items.
  repeated PartialObjectMetadata items = 2;
}

// Patch is provided to give a concrete name and type to the Kubernetes PATCH request body.
message Patch {
}

// PatchOptions may be provided when patching an API object.
// PatchOptions is meant to be a superset of UpdateOptions.
message PatchOptions {