export declare class NotFoundLayer extends Error {
    constructor(layerName: string);
    private getMessage;
}
export declare class NotFoundPage extends Error {
    constructor(pageName: string);
    private getMessage;
}
export declare class NotFoundArtboard extends Error {
    constructor(artboardName: string);
    private getMessage;
}
export declare class NotFoundGroup extends Error {
    constructor(groupName: string);
    private getMessage;
}