Botframework v4直接线集成:有没有办法从直接传输到聊天机器人(nodejs代码)中获得生成的会话id

const { BotFrameworkAdapter, MemoryStorage, ConversationState } = require('botbuilder');
const restify = require('restify');

// 其他依赖项和配置

const adapter = new BotFrameworkAdapter({
    appId: process.env.MicrosoftAppId,
    appPassword: process.env.MicrosoftAppPassword
});

const storage = new MemoryStorage();
const conversationState = new ConversationState(storage);

adapter.use(conversationState);

async function processMessage(context) {
    const conversationId = context.activity.conversation.id;
    // 其他处理逻辑
}

const server = restify.createServer();
server.listen(process.env.port || process.env.PORT || 3978, () => {
    console.log(`\n${server.name} listening to ${server.url}`);
});

server.post('/api/messages', (req, res) => {
    adapter.processActivity(req, res, async (context) => {
        await processMessage(context);
    });
});