9
{"key-value":{"redis":{"2":{"type":"key-value","tiers":{"free":{"order":1,"description":"Free offering (64MiB)"}},"version":"2","vendor":"redis","description":"Redis key-value store service"}}},"database":{"mysql":{"5.1":{"type":"database","tiers":{"free":{"order":1,"description":"Free offering (1GiB)"}},"version":"5.1","description":"MySQL database service","vendor":"mysql"}}}}