import { Nameable } from "./nameable";
import { IReferenceable } from "./types";
export declare abstract class Referenceable extends Nameable implements IReferenceable {
    /** Unique string identifier of this element. This is used for referencing this instance from other elements. */
    id: string;
    private static ID_COUNTER;
    private static _instances;
    /** call before export */
    static resetIdCounter(): void;
    constructor(name?: string, color?: string, comment?: string);
    toXmlObject(): any;
    fromXmlObject(xmlObject: any): this;
    static getById(id: string): Referenceable | undefined;
}