import { Commands, Facade } from '@w11k/tydux';
export declare class OverviewState {
    readonly defaultZoom = 6;
    readonly minZoom = 2;
    readonly maxZoom = 12;
    zoom: number;
    lineBreakOnFirstLevel: boolean;
}
export declare class OverviewMutator extends Commands<OverviewState> {
    constructor();
    zoomIn(): void;
    resetZoom(): void;
    zoomOut(): void;
    toggleLineBreakOnFirstLevel(): void;
}
export declare class OverviewService extends Facade<OverviewState, OverviewMutator> {
    constructor();
    zoomIn(): void;
    resetZoom(): void;
    zoomOut(): void;
    toggleLineBreakOnFirstLevel(): void;
}