import { AbstractBase } from './abstract.base';
import { ChannelName, MessageFunction } from '../../bus.api';
import { GeneralError } from '../model/error.model';
export declare abstract class AbstractOperations extends AbstractBase {
    /**
     * Call a service via the event bus
     *
     * @param channel the channel on which the service is listening on
     * @param request the request object you want to send to the service.
     * @param successHandler handle the successful response from the service.
     * @param errorHandler handle any errors that are caught or thrown by the service.
     */
    callService<RequestType, RetPayload>(channel: ChannelName, request: RequestType, successHandler: MessageFunction<RetPayload | RetPayload[]>, errorHandler?: MessageFunction<GeneralError>): void;
}