import { type StyleInfo, type CssOGInfo, type PageConfig, type SSRHydrateInfo, type FlattenedStyleInfo } from '@lynx-js/web-constants';
/**
 * get Transitive Closure of a Direct Acyclic Graph (DAG)
 * 1. for each css, find all the imported by css files (directly and indirectly)
 * 2. for each css, find all the importing css files (directly and indirectly)
 * 3. return the flattened style info, do not modify the content and rules
 */
export declare function flattenStyleInfo(styleInfo: StyleInfo, cloneDeep?: boolean): FlattenedStyleInfo;
/**
 * apply the lynx css -> web css transformation
 */
export declare function transformToWebCss(styleInfo: FlattenedStyleInfo): void;
/**
 * generate those styles applied by <style>...</style>
 */
export declare function genCssContent(styleInfo: FlattenedStyleInfo, pageConfig: PageConfig, entryName?: string): string;
/**
 * generate the css-in-js data
 */
export declare function genCssOGInfo(styleInfo: FlattenedStyleInfo): CssOGInfo;
export declare function appendStyleElement(styleInfo: StyleInfo, pageConfig: PageConfig, rootDom: Node, document: Document, ssrHydrateInfo?: SSRHydrateInfo, allOnUI?: boolean): {
    updateCssOGStyle: (uniqueId: number, newClassName: string, cssID: string | null, entryName: string | null) => void;
    updateLazyComponentStyle: (styleInfo: StyleInfo, entryName: string) => void;
};