your Perl data structures containing SCALAR, ARRAY, HASH or anything that can be serialized into JSON.
The concept for this package is to provide similar capabilities as Storable::store and Storable updates this document
http://127.0.0.1:5984/perl-storable-couchdb/counter
Which returns this JSON structure
{
"_id":"counter",
"_rev":"39-31732f54c3ad4f2b61c217a9a8cf6171",
"data":