/**
 * Generate a function that creates BEM blocks with a given namespace.
 * @param prefix - the namespace for the BEM blocks
 */
export declare function generateCssNamespaceFn(prefix: string): (namespace: string) => {
    cls: string;
    b: (blockSuffix?: string) => string;
    e: (element?: string) => string;
    m: (modifier?: string) => string;
    be: (blockSuffix?: string, element?: string) => string;
    bm: (blockSuffix?: string, modifier?: string) => string;
    em: (element?: string, modifier?: string) => string;
    bem: (blockSuffix?: string, element?: string, modifier?: string) => string;
    genCssVar: (target: Record<string, string>) => Record<string, string>;
    getCssVar: (key: string) => string;
};