code: func NewNodeLabelPredicate(labels []string, presence bool) FitPredicate {
  	labelChecker := &NodeLabelChecker{
  		labels:   labels,
  		presence: presence,
  	}
  	return labelChecker.CheckNodeLabelPresence
  }
docs: // NewNodeLabelPredicate creates a predicate which evaluates whether a pod can fit based on the
  // node labels which match a filter that it requests.