import { Observable } from 'rxjs';
import { TaskManagementTab } from '../models';
import * as i0 from "@angular/core";
export declare class TaskManagementService {
    private readonly _activeTab$;
    get activeTab$(): Observable<TaskManagementTab>;
    setActiveTab(tab: TaskManagementTab): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<TaskManagementService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TaskManagementService>;
}
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