The cachem object backing cached(). Memory-only unless
BIOHTTP_CACHE_DISK asks for the disk tier, in which case the two are
layered. Built on first use.
Details
It is safe to hold the returned object. cache_reset() clears it in place
rather than replacing it, unless a cache setting has changed, in which case a
differently configured store genuinely has to be built. See cache_reset().
Examples
cache_reset()
class(cache())[1]
#> [1] "cache_mem"