import { MarkerArea, MarkerBase } from '@markerjs/markerjs3';
export declare function useAnnotationLayer(): {
    activeMarker: import('vue').Ref<MarkerArea | null, MarkerArea | null>;
    activeTool: import('vue').Ref<string | typeof MarkerBase | null, string | typeof MarkerBase | null>;
    isVisibleMenu: import('vue').Ref<boolean, boolean>;
    scalingMode: import('vue').Ref<"fit-content" | "fit-width" | "fit-height", "fit-content" | "fit-width" | "fit-height">;
    clearSelection: () => void;
    setActiveMarker: (marker: null | MarkerArea) => void;
    setActiveTool: (tool: null | typeof MarkerBase | string) => void;
    triggerToolUpdate: () => void;
    showMenu: (value: boolean) => boolean;
    toggleMenu: () => boolean;
};