export default class Drawer extends HTMLElement {
    private canvas_data;
    private image;
    private drawer;
    constructor();
    connectedCallback(): Promise<void>;
    close_canvas(): void;
    set_canvas(canvas_data: string): void;
    get_canvas(): string;
    get_canvas_image(): any;
    get_image(): string;
    set_background_image_from_url(url: string, position?: string): void;
    private initialize;
}