I'm submitting a ...

• feature request

What is the expected behavior?

It is required to display the test-method parameter in the @allure.title()

@allure.title('Test object {obj_name}')
@pytest.mark.parametrize('obj_name', ['First', 'Second', 'Third'])
def test_object(self, obj_name):
    pass

What is the motivation / use case for changing the behavior?

Using the filter by the test-method parameter

Please tell us about your environment:

• Allure version: 2.4.0
• Test framework: pytest@3.3.1
• Allure adaptor: allure-pytest@2.3.1b1