const heroCard = CardFactory.heroCard(
    '[BotFramework Hero Card](https://microsoft.com)',
    CardFactory.images(['http://localhost:3978/dog.jpg']),
    CardFactory.actions([
        {
            type: 'openUrl',
            title: 'openUrl',
            value: 'https://azure.microsoft.com/en-us/pricing/details/bot-service/'
        },{
            type: 'postBack',
            title: 'postBack',
            value: 'postBack'
        },{
            type: 'imBack',
            title: 'imBack',
            value: 'imBack'
        }])
);

await context.sendActivity({ attachments: [heroCard] });