<===> input.scss
$foo: #{bar();};

<===> error
Error: Invalid CSS after "$foo: #{bar()": expected "}", was ";};"
        on line 1 of input.scss
  Use --trace for backtrace.

<===> error-dart-sass
Error: expected "}".
  ,
1 | $foo: #{bar();};
  |              ^
  '
  input.scss 1:14  root stylesheet