/**
 * expose worker
 *
 * @param callback Callback function for processing the inbound data
 */
declare function expose<A = any, TMessageOut = any>(callback: (input: A) => TMessageOut): (input: A) => TMessageOut;
declare function expose<A = any, TMessageOut = any>(callback: (input: A) => Promise<TMessageOut>): (input: A) => Promise<TMessageOut>;
declare function expose<A = any, B = any, TMessageOut = any>(callback: (input: A, options: B) => TMessageOut): (input: A, options: B) => TMessageOut;
declare function expose<A = any, B = any, TMessageOut = any>(callback: (input: A, options: B) => Promise<TMessageOut>): (input: A, options: B) => Promise<TMessageOut>;
type MessageEventFormat<A, B> = [[A] | true, [B] | true];

export { MessageEventFormat, expose };