import { ClassConstructor } from '../util';
import { HandlerDefinition, MessageBase } from './handler';
/**
 * Declares a message handling function
 * @param messageType Type of message that the function handles
 * @param messageHandler Function that is executed each time the type of message is read from the bus
 * @example
 * const testEventHandler = handlerFor(TestEvent, (message: TestEvent, attributes: MessageAttributes) => {})
 */
export declare const handlerFor: <TMessageType extends MessageBase>(messageType: ClassConstructor<TMessageType>, messageHandler: HandlerDefinition<TMessageType>) => {
    messageType: ClassConstructor<TMessageType>;
    messageHandler: HandlerDefinition<TMessageType>;
};