class NodeOperator extends BaseOperator<Node> {

    @Override
    public Node build(Object[] objects) throws Exception {<FILL_FUNCTION_BODY>}

}

        OperatorHelper.checkObjectSizeEqOne(objects);
        String nodeId = OperatorHelper.convert(objects[0], String.class);

        if (FlowBus.containNode(nodeId)) {
            // 找到对应节点
            return FlowBus.getNode(nodeId);
        } else {
            // 生成代理节点
            return new FallbackNode(nodeId);
        }
    
<methods>public non-sealed void <init>() ,public abstract com.yomahub.liteflow.flow.element.Node build(java.lang.Object[]) throws java.lang.Exception,public com.yomahub.liteflow.flow.element.Node executeInner(java.lang.Object[]) throws java.lang.Exception<variables>