human
Solve the following python programming problem given the following code:
@ unittest.skipIf (USING_WX, 'TaskWindowBackend is not implemented in WX') 
def setUp(self) : 
    self.task = BogusTask () 
    window = TaskWindow () 
    window.add_task (self.task) 
    self.task_state = window._get_state (self.task) 
    dock_pane_toggle_group = [] 
    def find_doc_pane_toggle(item) : 
        if (item.id == 'tests.bogus_task.DockPaneToggleGroup') : 
            dock_pane_toggle_group.append (item) 
self.task_state.menu_bar_manager.walk (find_doc_pane_toggle) 
    self.dock_pane_toggle_group = self [0] 

    
    

    Fix the buggy line: self.dock_pane_toggle_group = self [0]
assistant
#Here is Python program to fix the buggy line: self.

self.dock_pane_toggle_group = dock_pane_toggle_group [0]