/**
 * A generator function that produces a function to rename keys.
 *
 * @param {OptionsToRenameKeys} options - Options to rename keys
 * @returns {Object}                    - A renamer object.
 *
 * Example:
 *
 * renamer({ prefix: 'a', keys: ['a', 'b'] }).get()
 * renamer({ prefix: 'a', separator: '-' }).get()
 * renamer().setPrefix('a')
 *          .setSeparator('-')
 *          .setKeys(['a', 'b'])
 *          .get()
 * renamer().setPrefix('a').get()
 * renamer().setSuffix('b').get()
 * renamer().setKeys(['a', 'b']).get()
 */
export function renamer(options?: OptionsToRenameKeys): Object;
export type OptionsToRenameKeys = {
    /**
     * - The prefix to add to the key.
     */
    prefix?: string | undefined;
    /**
     * - The suffix to add to the key.
     */
    suffix?: string | undefined;
    /**
     * - The separator to use between the key and the prefix or suffix.
     */
    separator?: string | undefined;
    /**
     * - The keys to rename.
     */
    keys?: any[] | undefined;
};