nl_tokens: Take only the last N items in an iterable sequence
pl_tokens: function takeLast ( count ) { return function ( iterable ) { return __asyncGenerator ( this , arguments , function * ( ) { var e_10 , _a ; const buffer = [ ] ; try { for ( var iterable_8 = __asyncValues ( iterable ) , iterable_8_1 ; iterable_8_1 = yield __await ( iterable_8 . next ( ) ) , ! iterable_8_1 . <mask> ; ) { const item = iterable_8_1 . value ; buffer . push ( item ) ; if ( buffer . length > count ) { buffer . shift ( ) ; } } } catch ( e_10_1 ) { e_10 = { error : e_10_1 } ; } finally { try { if ( iterable_8_1 && ! iterable_8_1 . done && ( _a = iterable_8 . return ) ) yield __await ( _a . call ( iterable_8 ) ) ; } finally { if ( e_10 ) throw e_10 . error ; } } return yield __await ( yield __await ( yield * __asyncDelegator ( __asyncValues ( buffer ) ) ) ) ; } ) ; } ; }