Gattica::DataSet to_hash method returning an array?

[CaDs]

Hi
I just installed the gem and I'm playing around to get used to it but I run into a weird case in which the to_hash method for a Gattica::DataSet object is returning an array

This is my code
1.9.3p0 :012 > visits.class
=> Gattica::DataSet

1.9.3p0 :013 > visits.to_hash.class
=> Array

The object itself contains an array of hashes, but the method's name is a little bit misleading since I was expecting to retrieve a hash

Thanks for the hard work!