import { Declaration } from 'postcss';
declare type ThemeFoldOptions = {
    /**
     * List of themes with path to css files.
     */
    themes: string[][];
    /**
     * Global helper-selectors.
     */
    globalSelectors?: string[];
    /**
     * Method of theme folding, by default choice mode in relation from themes size.
     *
     * single-theme — don't accumulate cascade with theme selectors.
     * multi-themes — accumulate cascade with theme selectors.
     */
    mode?: 'single-theme' | 'multi-themes';
    /**
     * Predicate for processing each nodes.
     */
    shouldProcessVariable?: (declaration: Declaration) => boolean;
    /**
     * Disable warnings
     */
    disableWarnings?: boolean;
    /**
     * Show original variables as comment
     */
    debug?: boolean;
    /**
     * Preserve original declaration
     */
    preserve?: string[] | boolean;
};
declare const _default: import("postcss").Plugin<ThemeFoldOptions>;
export default _default;