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Caching
=======
When your application runs slow, throw some caches in. Well, at least
it's the easiest way to speed up things. What does a cache do? Say you
have a function that takes some time to complete but the results would
still be good enough if they were 5 minutes old. So then the idea is that
you actually put the result of that calculation into a cache for some
time.
Flask itself does not provide caching for you, but `Flask-Caching`_, an
extension for Flask does. Flask-Caching supports various backends, and it is
even possible to develop your own caching backend.
.. _Flask-Caching: https://flask-caching.readthedocs.io/en/latest/
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