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(
(let x (Read! world (DataSource '"yt" '"plato") (Key '('table (String '"Input"))) '('"age" '"name") '()))
(let data (lambda '(item) (block '(
(let s (Struct))
(let s (AddMember s '"age" (Cast (Member item '"age") 'Uint64)))
(let s (AddMember s '"name" (Member item '"name")))
(return (AsList s))
))))
(let data (FlatMap (Right! x) data))
(let key (lambda '(item) (block '(
(let age (Member item '"age"))
(let name (Member item '"name"))
(return '(age name))
))))
(let res (Sort data '((Bool 'false) (Bool 'false)) key))
(let mr_sink (DataSink '"yt" '"plato"))
(let res (Write! (Left! x) mr_sink (Key '('table (String '"Output"))) res '('('mode 'append))))
(return (Commit! res mr_sink))
)
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