是否可以使用Node.js为对话流意图参数启用'required‘选项？

const dialogflow = require('dialogflow');

// 创建一个新的意图
async function createIntent(projectId, intentName) {
  const intentsClient = new dialogflow.IntentsClient();

  const agentPath = intentsClient.projectAgentPath(projectId);

  const intent = {
    displayName: intentName,
    trainingPhrases: [
      {
        type: 'EXAMPLE',
        parts: [
          {
            text: '我想订一张机票',
          },
        ],
      },
    ],
    messages: [
      {
        text: {
          text: ['好的，请提供您的出发地和目的地。'],
        },
      },
    ],
    parameters: [
      {
        displayName: '出发地',
        entityTypeDisplayName: '@sys.location',
        mandatory: true, // 设置为'required'
        prompts: ['请提供出发地。'],
      },
      {
        displayName: '目的地',
        entityTypeDisplayName: '@sys.location',
        mandatory: true, // 设置为'required'
        prompts: ['请提供目的地。'],
      },
    ],
  };

  const request = {
    parent: agentPath,
    intent: intent,
  };

  const [response] = await intentsClient.createIntent(request);
  console.log(`Intent created: ${response.name}`);
}

// 使用示例
createIntent('your-project-id', '订机票');