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# program
(
(let config (DataSource 'config))
(let world (Configure! world config 'PureDataSource 'yt))
(import agg_module '"/lib/yql/aggregate.yql")
(let list (AsList
(AsStruct '('key (Uint32 '1)) '('value (Uint32 '2)))
(AsStruct '('key (Uint32 '2)) '('value (Uint32 '3)))
(AsStruct '('key (Uint32 '1)) '('value (Uint32 '1)))
(AsStruct '('key (Uint32 '3)) '('value (Uint32 '9)))
(AsStruct '('key (Uint32 '2)) '('value (Uint32 '5)))
(AsStruct '('key (Uint32 '2)) '('value (Uint32 '7)))
))
(let list_traits (Apply (bind agg_module 'list_traits_factory) (TypeOf list) (lambda '(row) (Member row 'value)) (Uint64 '0)))
(let res_sink (DataSink 'result))
(let resKey (Aggregate list '('key) '('('list_value list_traits))))
(let world (Write! world res_sink (Key) resKey '('('type))))
(let world (Commit! world res_sink))
(return world)
)
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