// Sass.@use'sass:list';// Status: DONE// The `list.first()` function returns the first element of `$list`.// @param `$list` The list to get the first element from.// @return The return value is the first element of `$list`.@functionfirst($list) {@returnif(type-of($list) == list, list.nth($list,1), $list);}// Examples.// @debug first(('a', 'b', c, d, 2, 4, 5, (a: 1))); // a// @debug first(((a: 1), 'b', c, d, 2, 4, 5, (a: 1))); // (a: 1)