code: func CheckNodePIDPressurePredicate(pod *v1.Pod, meta PredicateMetadata, nodeInfo *schedulernodeinfo.NodeInfo) (bool, []PredicateFailureReason, error) {
  	// check if node is under pid pressure
  	if nodeInfo.PIDPressureCondition() == v1.ConditionTrue {
  		return false, []PredicateFailureReason{ErrNodeUnderPIDPressure}, nil
  	}
  	return true, nil, nil
  }
docs: // CheckNodePIDPressurePredicate checks if a pod can be scheduled on a node
  // reporting pid pressure condition.