Why is Allure giving an empty report?

Question

Yandex

I start the server: C:\Users\Admin>C:\Users\Admin\scoop\apps\allure\current\bin\allure.bat serve C:\
Users\Admin\Desktop\TestTaskQA\report
In the executable file 1.py is called such a function:
def test_foo(self):
allure.attach('my attach', 'Hello, World')
Allure server in the web interface write ALLURE REPORT UNKNOWN unknown - unknown (Unknown) tell me
how to solve