human
Solve the following python programming problem given the following code:
@ mock.patch.object (action_db_util, 'get_action_by_ref', mock.MagicMock (return_value = ACTION_1)) 
@ mock.patch.object (action_service, 'request', return_value = (DummyActionExecution (), None)) 
def test_params_and_parameters_attributes_both_work(self, _) : 
    chain_runner = acr.get_runner () 
    chain_runner.entry_point = CHAIN_ACTION_PARAMS_ATTRIBUTE 
    chain_runner.action = ACTION_2 
    chain_runner.container_service = RunnerContainerService () 
    chain_runner.pre_run () 
    original_build_liveaction_object = chain_runner._build_liveaction_object 
    def mock_build_liveaction_object(action_node, resolved_params, parent_context) : 
        self.assertEqual (resolved_params, { 
            'pparams' : 'v1', 
}) 
        original_build_liveaction_object (action_node = action_node, resolved_params = resolved_params, parent_context = parent_context) 
chain_runner._build_liveaction_object = mock_build_liveaction_object 
    action_parameters = { 
        
} 
    (status, output, _) = chain_runner.run (action_parameters = action_parameters) 
    self.assertEqual (status, LIVEACTION_STATUS_SUCCEEDED) 
    chain_runner = acr.get_runner () 
    chain_runner.entry_point = CHAIN_ACTION_PARAMETERS_ATTRIBUTE 
    chain_runner.action = ACTION_2 
    chain_runner.container_service = RunnerContainerService () 
    chain_runner.pre_run () 
    def mock_build_liveaction_object(action_node, resolved_params, parent_context) : 
        self.assertEqual (resolved_params, { 
            'pparameters' : 'v1', 
}) 
        original_build_liveaction_object (action_node = action_node, resolved_params = resolved_params, parent_context = parent_context) 
chain_runner._build_liveaction_object = self 
    action_parameters = { 
        
} 
    (status, output, _) = chain_runner.run (action_parameters = action_parameters) 
    self.assertEqual (status, LIVEACTION_STATUS_SUCCEEDED) 

    
    

    Fix the buggy line: chain_runner._build_liveaction_object = self
assistant
#Here is Python program to fix the buggy line: chain_runner.

chain_runner._build_liveaction_object = mock_build_liveaction_object