human
Solve the following python programming problem given the following code:
@ mock.patch ('oslo_log.versionutils.report_deprecated_feature') 
def test_deprecated_with_custom_what(self, mock_reporter) : 
    @ versionutils.deprecated (as_of = versionutils.deprecated.GRIZZLY, what = 'v2.0 API', in_favor_of = 'v3 API') 
    def do_outdated_stuff() : 
        return 
do_outdated_stuff () 
    self.assert_deprecated (self, what = 'v2.0 API', in_favor_of = 'v3 API', as_of = 'Grizzly', remove_in = 'Icehouse') 

    
    

    Fix the buggy line: self.assert_deprecated (self, what = 'v2.0 API', in_favor_of = 'v3 API', as_of = 'Grizzly', remove_in = 'Icehouse')
assistant
#Here is Python program to fix the buggy line: self.

self.assert_deprecated (mock_reporter, what = 'v2.0 API', in_favor_of = 'v3 API', as_of = 'Grizzly', remove_in = 'Icehouse')