The toJSON and fromJSON functions are drop-in replacements for the identically named functions
in packages rjson and RJSONIO`.

Recently did a deprecation of rjson to jsonlite and this is not true... at a minimum, to replace rjson::toJSON, we need to set digits=15L and auto_unbox=TRUE. fromJSON does seem to work as a drop-in replacement (at least nothing broke from ~50 packages replacing rjson::fromJSON directly with jsonlite::fromJSON)