1<===> input.scss
2@function test() {
3  @return;
4}
5
6div {
7  x: type-of(test());
8}
9<===> error
10Error: Invalid CSS after "  @return": expected expression (e.g. 1px, bold), was ";"
11        on line 2 of input.scss
12  Use --trace for backtrace.
13
14<===> error-dart-sass
15Error: Expected expression.
16  ,
172 |   @return;
18  |          ^
19  '
20  input.scss 2:10  root stylesheet
21