/** The callback style method to promisefy */
export type PromisefyCallback = (...args: any[]) => any;
/** The promisefied method */
export type PromisefiedFunction = (...args: any[]) => Promise<any>;
/**
 * Converts a callback based action into one returning a Promise instead.
 *
 * @param fn - The callback to promisefy
 *
 * @returns The promisefied function
 *
 * @example
 * ```ts
 * function action(name, callback) { ... callback(); }
 *
 * action = promisefy(action);
 *
 * action
 *   .then(() => 'all good')
 *   .catch(() => 'Something went wrong');
 * ```
 */
export declare function promisefy(fn: PromisefyCallback): PromisefiedFunction;
export default promisefy;