Some class property attributes seem to be missing

[TobiasHolicki]

Hi, Some test class property attributes are not recognized. For example, running sphinx to autodoc the following class

classdef Test < matlab.unittest.TestCase     
    methods(Test, TestTags = {'Unit'})
        function testRunning()
            %
        end
    end
end

results in the warning WARNING: [sphinxcontrib-matlabdomain] Unexpected class attribute: 'TestTags'. In 'src.Test'..