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KnockKnock is an open-source library for getting alerts/notifications. It can be used in training jobs, data engineering pipelines, scheduled pipelines, in fact, any function’s return statement; with just 2 additional lines of code. You can also set up these alerts on your Email, Desktop Notification, SMS, etc. using just 2 lines. You also get information on how much time a particular job run took along with Start Timestamp and End Timestest Timestamp.