Eases saving the data downloaded from api.tradestatistics.io
and prevents ots_read_from_api() from downloading the same twice.
ots_cache(use_cache, file, ...)Logical to save and load from cache. If TRUE, the results will be cached in memory
if file is NULL or on disk if `file` is not NULL.
Character with the full file path to save the data.
Additional parameters inherited from ots_create_tidy_data().