export declare const ATTR_TOKEN = "data-token-hash";
export declare const ATTR_MARK = "data-css-hash";
export declare const ATTR_CACHE_PATH = "data-cache-path";
export type TokenWithCSSVar<V, T extends Record<string, V> = Record<string, V>> = {
    [key in keyof T]?: string | V;
};
export declare function flattenToken(token: any): string;
/**
 * Convert derivative token to key string
 */
export declare function token2key(token: any, salt: string): string;
export declare function supportLayer(): boolean;
export declare function supportWhere(): boolean;
export declare function supportLogicProps(): boolean;
export declare const isClientSide: boolean;
export declare function unit(num: string | number): string;
export declare const token2CSSVar: (token: string, prefix?: string) => string;
export declare function toStyleStr(style: string, tokenKey?: string, styleId?: string, customizeAttrs?: Record<string, string>, plain?: boolean): string;
export declare const serializeCSSVar: <T extends Record<string, any>>(cssVars: T, hashId: string, options?: {
    scope?: string;
}) => string;
export declare const transformToken: <V, T extends Record<string, V> = Record<string, V>>(token: T, themeKey: string, config?: {
    prefix?: string;
    ignore?: { [key in keyof T]?: boolean; };
    unitless?: { [key in keyof T]?: boolean; };
    preserve?: { [key in keyof T]?: boolean; };
    scope?: string;
}) => [TokenWithCSSVar<V, T>, string];