// `@namespace` URI with SCSS interpolation: the outer quote re-quotes per
// `singleQuote` (Prettier `printString` / `adjustStrings`) but the content
// stays verbatim (postcss-values `value-unknown`, same path as a value-position
// `InterpolableStr`). Without this, `@namespace foo '#{$url}'` would print
// the single quote unchanged — verified against Prettier 3.8.4.

@namespace foo '#{$url}';
@namespace bar "#{$url}";
@namespace baz "plain";
@namespace qux 'plain';
