// as defined by https://golang.org/pkg/unicode/#IsPrint.
  // +optional
  optional string fieldManager = 3;

  // fieldValidation instructs the server on how to handle
  // objects in the request (POST/PUT/PATCH) containing unknown
  // or duplicate fields. Valid values are:
  // - Ignore: This will ignore any unknown fields that are silently
  // dropped from the object, and will ignore all but the last duplicate