import { type ITimestampStruct } from '../../json-crdt-patch/clock';
import type { JsonNode } from '..';
import type { Printable } from 'tree-dump/lib/types';
export declare abstract class ExtNode<N extends JsonNode, View = unknown> implements JsonNode<View>, Printable {
    readonly data: N;
    abstract readonly extId: number;
    readonly id: ITimestampStruct;
    constructor(data: N);
    /**
     * @todo Maybe hardcode this as `ext` to be inline with other classes. And retrieve extension names differently.
     */
    abstract name(): string;
    abstract view(): View;
    children(callback: (node: JsonNode) => void): void;
    child?(): N;
    container(): JsonNode | undefined;
    api: undefined | unknown;
    toString(tab?: string, parentId?: ITimestampStruct): string;
}