human
Solve the following python programming problem given the following code:
def _test_get_info(self, vm_exists) : 
    mock_instance = fake_instance.fake_instance_obj (self.context) 
    mock_info = mock.MagicMock (spec_set = dict) 
    fake_info = { 
        'EnabledState' : 2, 
        'MemoryUsage' : mock.sentinel.FAKE_MEM_KB, 
        'NumberOfProcessors' : mock.sentinel.FAKE_NUM_CPU, 
        'UpTime' : mock.sentinel.FAKE_CPU_NS, 
} 
    def getitem(key) : 
        return fake_info [key] 
mock_info.__getitem__.side_effect = getitem 
    expected = hardware.InstanceInfo (state = constants.HYPERV_POWER_STATE [2], max_mem_kb = mock.sentinel.FAKE_MEM_KB, mem_kb = mock.sentinel.FAKE_MEM_KB, num_cpu = mock.sentinel.FAKE_NUM_CPU, cpu_time_ns = mock.sentinel.FAKE_CPU_NS) 
    self._vmops._vmutils.vm_exists.return_value = vm_exists 
    self._vmops._vmutils.get_vm_summary_info.return_value = mock_info 
    if (not vm_exists) : 
        self.assertRaises (exception.InstanceNotFound, self._vmops.get_info, mock_instance) 
else : 
        response = self._vmops.get_info (mock_instance) 
        self._vmops._vmutils.vm_exists.assert_called_once_with (self.name) 
        self._vmops._vmutils.get_vm_summary_info.assert_called_once_with (mock_instance.name) 
        self.assertEqual (response, expected) 

    
    

    Fix the buggy line: self._vmops._vmutils.vm_exists.assert_called_once_with (self.name)
assistant
#Here is Python program to fix the buggy line: self.

self._vmops._vmutils.vm_exists.assert_called_once_with (mock_instance.name)