@Bean
public LlmRoutingAgent nimbusRouterAgent(ChatModel chatModel,
                                          SequentialAgent weatherSequentialAgent,
                                          ReactAgent chitchatAgent) {
    return LlmRoutingAgent.builder()
            .name("router")
            .model(chatModel)
            .description("路由")
            .subAgents(List.of(weatherSequentialAgent, chitchatAgent))
            .build();
}

java.lang.IllegalArgumentException: Routing sub-agents must be BaseAgent for merge support
    at com.alibaba.cloud.ai.graph.agent.flow.strategy.RoutingGraphBuildingStrategy.buildCoreGraph(RoutingGraphBuildingStrategy.java:84)

for (Agent subAgent : config.getSubAgents()) {
    if (!(subAgent instanceof BaseAgent)) {
        throw new IllegalArgumentException("Routing sub-agents must be BaseAgent for merge support");
    }
    baseAgentList.add((BaseAgent) subAgent);
}

LlmRoutingAgent router = LlmRoutingAgent.builder()
    .name("router")
    .model(chatModel)
    .subAgents(List.of(sequentialAgent1, sequentialAgent2))
    .build();