| cache_info | Get info about the cache | 
| cache_op | Wrapper to add caching to functions | 
| delete_cache | Delete your entire cache | 
| exists_in_cache | Check if given key exists in cache | 
| get_cache_dir | Get cache directory | 
| hash_query | Hash an arbitrary string | 
| match_fun | Smart matching of functions | 
| read_from_cache | Read file from cache. | 
| save_to_cache | Save R object to cache | 
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