public void updateKey(N node){
        node.getKey().update(node.getG(), node.getV(), heuristicFunction.estimate(node.state()), epsilon, add, scale);
    }
public void updateKey ( N node ) { node . getKey ( ) . update ( node . getG ( ) , node . getV ( ) , heuristicFunction . estimate ( node . state ( ) ) , epsilon , add , scale ) ; }
Updating the priority of a node is required when changing the value of Epsilon.