lenskit-api no longer requires data structures
lenskit-api no longer requires data structures

kluver/lenskit,vaibhav345/lenskit,vaibhav345/lenskit,kluver/lenskit,vaibhav345/lenskit,kluver/lenskit,kluver/lenskit,vaibhav345/lenskit,kluver/lenskit