import { Observable, Subscription } from 'rxjs';
import * as i0 from "@angular/core";
export declare class PubsubService {
    private events;
    constructor();
    /**
     * a subscription which returns everything as an observable from @see {RxJs}
     * this method does not use eventObject
     * @param {event} event - the specific name to subscribe on - the names must be specific to those we publish.
     * @returns {Observable<any>} an observable.
     * @summary remember to unsubscribe in onDestroy of the components
     */
    $sub(event: string): Observable<any>;
    /**
     * a subscription which returns the callback, error and complete as a subscription from @see {RxJs}
     * this method does not use eventObject
     * @param {event} event - the specific name to subscribe on - the names must be specific to those we publish.
     * @param {(value: any) => void} callback - callback method which gets the value from eventObject.
     * @returns {Subscription} a subscription which we can listen to.
     * @summary remember to unsubscribe in onDestroy of the components
     */
    $sub(event: string, callback: (value: any) => void): Subscription;
    /**
     * a subscription which returns the callback, error and complete as a subscription from @see {RxJs}
     * this method does not use eventObject
     * @param {event} event - the specific name to subscribe on - the names must be specific to those we publish.
     * @param {(error: any) => void} error - exception catch function
     * @param {() => void} complete - complete function
     * @returns {Subscription} a subscription which we can listen to.
     * @summary remember to unsubscribe in onDestroy of the components
     */
    $sub(event: string, callback: (value: any) => void, error: (error: any) => void): Subscription;
    /**
     * a subscription which returns the callback, error and complete as a subscription from @see {RxJs}
     * @param {event} event - the specific name to subscribe on - the names must be specific to those we publish.
     * @param {(value: any) => void} callback - callback function
     * @param {(error: any) => void} error - exception catch function
     * @param {() => void} complete - complete function
     * @returns {Subscription} a subscription which we can listen to.
     * @summary remember to unsubscribe in onDestroy of the components
     */
    $sub(event: string, callback: (value: any) => void, error: (error: any) => void, complete: () => void): Subscription;
    /**
     * Base Module needed to use PubSubService.
     * @param {event} event - the specific name to subscribe on
     * @param {eventObject} eventObject - the optional paramter to send when raising the event
     */
    $pub(event: string, eventObject?: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<PubsubService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<PubsubService>;
}
export interface IPubSubService {
    $pub(event: string, eventObject?: any): void;
    $sub(event: string): Observable<any>;
    $sub(event: string, callback: (value: any) => void): Subscription;
    $sub(event: string, callback: (value: any) => void, error: (error: any) => void): Subscription;
    $sub(event: string, callback: (value: any) => void, error: (error: any) => void, complete: () => void): Subscription;
}