export declare function isGeoreferencedMapsBeforeParse(mapOrMaps: unknown): mapOrMaps is Array<unknown>;
export declare function isAnnotationPageBeforeParse(annotation: unknown): annotation is {
    type: 'AnnotationPage';
    items: unknown[];
};
export declare function isGeoreferencedMap2BeforeParse(georeferencedMap: unknown): georeferencedMap is {
    type: 'GeoreferencedMap';
};
export declare function isAnnotation0BeforeParse(annotation: unknown): annotation is {
    target: {
        source: string;
    };
};