(
#comment
(let config (DataSource 'config))

(let res_sink (DataSink 'result))
(let gen (NewMTRand (Uint64 '42)))
(let p (NextMTRand gen))
(let gen (Nth p '1))
(let v1 (Nth p '0))
(let p (NextMTRand gen))
(let gen (Nth p '1))
(let v2 (Nth p '0))
(let world (Write! world res_sink (Key) '(v1 v2) '('('type))))
(let world (Commit! world res_sink))
(return world)
)