( #comment (let mr_source (DataSource 'yt 'plato)) (let x (Read! world mr_source (Key '('table (String 'Input))) '('key 'subkey 'value) '())) (let world (Left! x)) (let table1 (Right! x)) (let tresh (String '100)) (let table1low (Filter table1 (lambda '(item) (< (Member item 'key) tresh)))) (let table1low2 (Filter table1low (lambda '(item) (> (Member item 'key) (String '050))))) (let mr_sink (DataSink 'yt (quote plato))) (let world (Write! world mr_sink (Key '('table (String 'Output))) table1low2 '('('mode 'append)))) (let world (Commit! world mr_sink)) (return world) )