| get_dir_cache | R Documentation | 
This internal function determines what directory should be used to store cache files. It can be a user-provided path, set as a global option, or determined on an OS basis.
get_dir_cache(dir_cache)
| dir_cache | User-specified cache directory. | 
The location of the cache directory, either explicitely user-provided, specified as a global option, or (by default) in the OS cache directory.
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