def enable_task_routine(self, task_callback=None):
""" Add a timer to trigger tasks consuming.
@param task_callback: callback function when this task has been done.
"""
self.task_callback = task_callback
self.task_timer = add_timer_routine(self._task_iterator, 1*1000)
self.task_timer.start()
def enable_task_routine(self):
self.timer = add_timer_routine(self.task_isr, 20*60*1000)
self.timer.start()
