def METHOD_NAME(self, dashboard_cls):
    """
    Description:
    -------------------------------------------
    Input:
    -------------------------------------------
    Ouput:
    """
    def reset_callback(event):
        dashboard_cls._query_str_dict.pop(self.name, None)
        dashboard_cls._reload_charts()
    # add callback to reset chart button
    self.chart.on_event(self.reset_event, reset_callback)