visitAtRule method
Implementation
T? visitAtRule(AtRule node) =>
visitInterpolation(node.name) ??
node.value.andThen(visitInterpolation) ??
super.visitAtRule(node);
T? visitAtRule(AtRule node) =>
visitInterpolation(node.name) ??
node.value.andThen(visitInterpolation) ??
super.visitAtRule(node);