usenu_test_support::nu;#[test]fnpar_each_does_not_flatten_nested_structures(){// This is a regression test for issue #8497
let actual =nu!("[1 2 3] | par-each { |it| [$it, $it] } | sort | to json --raw");assert_eq!(actual.out,"[[1,1],[2,2],[3,3]]");}