Adaptive Cards in MS Teams

Adaptive Cards in MS Teams

I've created code for global function and nothing happen. Can you help me? 

test='{"$schema":"http://adaptivecards.io/schemas/adaptive-card.json","type":"AdaptiveCard","version":"1.2","body":[{"type":"TextBlock","text":"Заявка на обслуживание","size":"Small","weight":"Bolder"},{"type":"Input.Text","id":"requestTitle","placeholder":"Введите заголовок заявки","value":"","size":"Medium"},{"type":"Input.Text","id":"requestDescription","placeholder":"Введите описание заявки","value":"","size":"Large"},{"type":"ActionSet","actions":[{"type":"Action.Submit","title":"Отправить заявку","data":{"requestTitle":"${requestTitle}","requestDescription":"${requestDescription}"}}]}]}';
t=Map();
t=test.toMap();
return t;

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