Imagine the do_something_complex function is executed as an automated nightly job. No humans involved. And let's say it needs to access a remote API or a databa

Imagine the do_something_complex function is executed as an automated nightly job. No humans involved. And let's say it needs to access a remote API or a database. One fine day some network changes happen in the external system without your knowledge and your function simply can't connect to the external API. Next morning how are you gonna know why your job failed without logging the exception?