human
Solve the following python programming problem given the following code:
def _test_data_model_impl(self, end_func, expected_end_status, expected_end_node_counts, expected_before_end_func, expected_after_end_func, expected_after_end_count, expected_after_end_runtime_property) : 
    def node_assertions(num, deploy_num, planned_num) : 
        node = self.client.nodes.get (deployment.id, 'node1') 
        self.assertEqual (node.number_of_instances, num) 
        self.assertEqual (node.planned_number_of_instances, planned_num) 
        self.assertEqual (node.deploy_number_of_instances, deploy_num) 
(_, _, _, deployment) = self.put_deployment (deployment_id = str (uuid.uuid4 ()), blueprint_file_name = 'modify1.yaml') 
    node_assertions (num = 1, deploy_num = 1, planned_num = 1) 
    mock_context = { 
        'some' : 'data', 
} 
    node1_instance = self.client.node_instances.list (deployment_id = deployment.id, node_name = 'node1') [0] 
    self.client.node_instances.update (node1_instance.id, runtime_properties = { 
        'test' : 'before_start', 
}, version = 0) 
    node2_instance = self.client.node_instances.list (deployment_id = deployment.id, node_name = 'node2') [0] 
    self.client.node_instances.update (node2_instance.id, runtime_properties = { 
        'test' : 'before_start', 
}, version = 0) 
    before_modification = self.list_items (self.client.node_instances.list, deployment.id) 
    modified_nodes = { 
        'node1' : { 
            'instances' : 2, 
}, 
} 
    modification = self.client.deployment_modifications.start (deployment.id, nodes = modified_nodes, context = mock_context) 
    self.assertEqual (modification.node_instances.before_modification, before_modification) 
    self.assertIsNone (modification.ended_at) 
    self.client.node_instances.update (node1_instance.id, runtime_properties = { 
        'test' : 'after_start', 
}, version = 1) 
    self.client.node_instances.update (node2_instance.id, runtime_properties = { 
        'test' : 'after_start', 
}, version = 1) 
    node_assertions (num = 1, deploy_num = 1, planned_num = 2) 
    modification_id...

    
    

    Fix the buggy line: self.assertEqual (self.client.node_instances.get (node2_instance.id).runtime_properties ['test'], expected_after_end_func)
assistant
#Here is Python code to fix the buggy line: self.

self.assertEqual (self.client.node_instances.get (node2_instance.id).runtime_properties ['test'], expected_after_end_runtime_property)