@Override
    public Object getPrivateData() {
        return privateData;
    }

    @Override
    public <T> void setPrivateData(Class<? super T> type, T object) {
        setPrivateData(ModelType.of(type), object);
    }

    @Override
    public <T> void setPrivateData(ModelType<? super T> type, T object) {
        if (!isMutable()) {

            new BiAction<MutableModelNode, Object>() {
                @Override
                public void execute(MutableModelNode mutableModelNode, Object input) {
                    mutableModelNode.setPrivateData(modelType, action.transform(input));
                }
            }
        )
            .withProjection(new UnmanagedModelProjection<C>(modelType))
            .build();
    }

            .action(ModelActionRole.Create, new Action<MutableModelNode>() {
                @Override
                public void execute(MutableModelNode modelNode) {
                    modelNode.setPrivateData(BINARY_TASKS_COLLECTION, tasks);
                }
            })
            .withProjection(new UnmanagedModelProjection<BinaryTasksCollection>(BINARY_TASKS_COLLECTION))

                                    S item = instantiator.create(modelNode.getPath().getName(), type.getConcreteClass());
                                    modelNode.setPrivateData(type, item);
                                }
                            }))
                            .build();
                    }
                };
            }
        };
    }