/**
 * Options that change how a value list is turned into a CSS value.
 */
export interface FlattenOptions {
    /**
     * Resolves a `[light, dark]` value list to that one branch instead of emitting
     * `light-dark()`. Needed because `light-dark()` is newer than the browsers
     * Handsontable supports, so the shipped minified CSS does not use it.
     */
    resolveScheme?: 'light' | 'dark';
    /**
     * Emits only the variables whose value is a `[light, dark]` list. Values that
     * are the same in both schemes do not need to be repeated in an override block.
     */
    lightDarkOnly?: boolean;
}
/**
 * Flattens the CSS variables object into a string of CSS variables.
 *
 * @param {object} cssVariables - The CSS variables object to flatten.
 * @param {string} [prefix='colors'] - The prefix to add to the CSS variables.
 * @param {string} [parentKey=''] - The parent key to add to the CSS variables.
 * @param {object} [options] - The flattening options.
 * @returns {string} - The flattened CSS variables.
 */
export declare function flattenCssVariables(cssVariables: Record<string, unknown>, prefix?: string, parentKey?: string, options?: FlattenOptions): string;