import { BehaviorSubject } from "rxjs";
import * as i0 from "@angular/core";
export declare class BreadcrumbPart {
    label: string;
    link: string | undefined;
    constructor(label: string, link: string | undefined);
}
export declare class ActionButton {
    label: string;
    link: string;
    icon: string;
    callback: () => any;
}
export declare class PageState {
    parts: BreadcrumbPart[];
    title: string;
    actions: ActionButton[];
    constructor(parts?: BreadcrumbPart[], title?: string, actions?: ActionButton[]);
}
export declare class BreadcrumbService {
    state: BehaviorSubject<PageState>;
    setState(state: PageState): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<BreadcrumbService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<BreadcrumbService>;
}