import App from '../index.js';
export declare function parseUseEl(useElement: SVGUseElement, mode: 'inline' | 'dataurl' | 'svgtext', domParser: DOMParser): Promise<any>;
interface Options {
    disableSprites?: boolean;
    disableThrottling?: boolean;
    inlineRemoteCss?: boolean;
    inlinerOptions?: {
        forceFetch?: boolean;
        forcePlain?: boolean;
    };
}
export default abstract class Observer {
    protected readonly app: App;
    protected readonly isTopContext: boolean;
    private readonly observer;
    private readonly commited;
    private readonly recents;
    private readonly indexes;
    private readonly attributesMap;
    private readonly textSet;
    private readonly slotMap;
    private readonly disableSprites;
    /**
     * this option means that, instead of using link element with href to load css,
     * we will try to parse the css text instead and send it as css rules set
     * can (and will) affect performance
     * */
    private readonly inlineRemoteCss;
    private readonly inlinerOptions;
    private readonly domParser;
    constructor(app: App, isTopContext?: boolean, options?: Options);
    private clear;
    /**
     * EXPERIMENTAL: Unbinds the removed nodes in case of iframe src change.
     *
     * right now, we're relying on nodes.maintainer
     */
    private handleIframeSrcChange;
    private sendNodeAttribute;
    throttling: boolean;
    private throttledSetNodeData;
    private sendNodeData;
    private bindNode;
    private bindTree;
    private unbindTree;
    private _commitNode;
    private commitNode;
    private commitNodes;
    protected observeRoot(node: Node, beforeCommit: (id?: number) => unknown, nodeToBind?: Node): void;
    disconnect(): void;
}
export {};