export declare function normalizeCompatSelectors(selector: string): string[];
export declare function collectGeneratedSelectors(css: string): Set<string>;
export declare function removeGeneratedSelectorCompatCss(css: string, generatedCss: string): string;
export declare function collectDedupedPostTransformCompatCss(css: string, generatedCss: string): string;
export declare function removeDuplicatedViteMarkers(css: string, baseCss: string): string;