}
                }
            }
        }

        public void put(NodeAtState nodeAtState, RuleBinder binder) {
            Map<String, List<RuleBinder>> byState = getByState(nodeAtState.state);
            String path = nodeAtState.path.toString();
            List<RuleBinder> byPath = getByPath(byState, path);
            if (!byPath.contains(binder)) {

        expect:
        bindings.getRulesWithSubject(nodeAtState("a", ModelNode.State.Created)).empty
        bindings.getRulesWithSubject(nodeAtState("a", ModelNode.State.Mutated)) as List == [rule1]
        bindings.getRulesWithSubject(nodeAtState("a", ModelNode.State.DefaultsApplied)) as List == [rule2]
        bindings.getRulesWithSubject(nodeAtState("a", ModelNode.State.Finalized)) as List == [rule3]
    }

        GoalGraph graph = new GoalGraph();
        transitionTo(graph, graph.nodeAtState(new NodeAtState(path, Registered)));
        ModelNodeInternal node = modelGraph.find(path);
        if (node == null) {
            return null;
        }
        transitionTo(graph, graph.nodeAtState(new NodeAtState(path, GraphClosed)));
        return node;
    }

    /**