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PRIVATE MODULE: do not import (from) it directly.
This module contains functionality for caching functions.
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A wrapper around a function that needs to be cached. This wrapper allows
for a single point from which cache can be cleared.
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Alternative for ``functools.lru_cache``. By decorating a function with
``cached``, you can clear the cache of that function by calling
``clear()``.
:param decorated: the decorated function.
:return: a wrapped function.
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Clear all cache of functions that were cached using ``cached``.
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