human
Solve the following python programming problem given the following code:
@ mock.patch ('rally.task.types.scenario.Scenario.get') 
@ mock.patch ('rally.task.types.osclients') 
def test_preprocess(self, mock_osclients, mock_scenario_get) : 
    name = 'some_plugin' 
    context = { 
        'a' : 1, 
        'b' : 2, 
        'admin' : { 
            'credential' : mock.MagicMock (), 
}, 
} 
    args = { 
        'a' : 10, 
        'b' : 20, 
} 
    class Preprocessor (types.ResourceType) : 
        @ classmethod 
        def transform(cls, clients, resource_config) : 
            return (resource_config * 2) 
mock_scenario_get.return_value._meta_get.return_value = { 
        'a' : Preprocessor, 
} 
    result = types.preprocess (mock_scenario_get, context, args) 
    mock_scenario_get.assert_called_once_with (name) 
    mock_scenario_get.return_value._meta_get.assert_called_once_with ('preprocessors', default = { 
        
}) 
    mock_osclients.Clients.assert_called_once_with (context ['admin'] ['credential']) 
    self.assertEqual ({ 
        'a' : 20, 
        'b' : 20, 
}, result) 

    
    

    Fix the buggy line: result = types.preprocess (mock_scenario_get, context, args)
assistant
#Here is Python program to fix the buggy line: result = types.

result = types.preprocess (name, context, args)