human
Solve the following python programming problem given the following code:
def connect_current_combo(client, prop, widget) : 
    '
    Connect widget.currentIndexChanged and client.prop

    client.prop should be a callback property
    ' 
    def update_widget(value) : 
        try : 
            idx = _find_combo_data (widget, value) 
except ValueError : 
            if (value is None) : 
                idx = (- 1) 
else : 
                raise 
widget.setCurrentIndex (idx) 
def update_prop(idx) : 
        if (idx == (- 1)) : 
            setattr (client, prop, None) 
else : 
            setattr (client, prop, widget.itemData (idx)) 
add_callback (client, prop, update_widget) 
    widget.currentIndexChanged.connect (widget) 
    update_widget (getattr (client, prop)) 

    
    

    Fix the buggy line: widget.currentIndexChanged.connect (widget)
assistant
#Here is Python code to fix the buggy line: widget.

widget.currentIndexChanged.connect (def update_prop()