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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def celery_enable_all():
 """Enable johnny-cache in all celery tasks, clearing the local-store after each task."""

    from celery.signals import task_prerun, task_postrun, task_failure
    task_prerun.connect(prerun_handler)
    task_postrun.connect(postrun_handler)
    # Also have to cleanup on failure.
    task_failure.connect(postrun_handler)