import type { FormatFn } from 'style-dictionary/types';
/**
 * @description Takes a style dictionary token dictionary and converts it to a one dimensional json object.
 * @param FormatFnArguments
 * @param options.nameSeparator - separator to use for nested token name
 * @returns formatted json `string`
 */
export declare const jsonPostCssFallback: FormatFn;