import { ObjApi, VecApi } from '../../../json-crdt/model';
import type { ConNode, ObjNode, VecNode } from '../../../json-crdt/nodes';
import type { NestedType } from './NestedType';
/**
 * Represents a single nested tag in a slice type. For example, in a slice type
 * like `['<blockquote>', 0, {author: 'Alice'}, ['<p>', 0, {indent: 2}]]`, there
 * is a tag for the blockquote and a tag for the paragraph. Each tag can
 * contain a discriminant and data.
 */
export declare class NestedTag<T = string> {
    protected readonly type: NestedType<T>;
    readonly index: number;
    constructor(type: NestedType<T>, index: number);
    /**
     * Enforces current tag at `index` to be a "vec" node, which contains
     * a tag, a discriminant and an object with data.
     */
    asVec(): VecApi<VecNode<[ConNode<number | string>, ConNode<number>, ObjNode]>>;
    /**
     * Returns the tag name at the current index, which is either a string or a number.
     * If the tag is not set, it returns `0`.
     *
     * @returns The tag value.
     */
    name(): string | number;
    /**
     * Sets the tag name at the current index. If the tag is not a string or a number,
     * it will be converted to a string.
     *
     * @param tag - The tag value to set.
     */
    setName(tag: string | number): void;
    /**
     * Returns the discriminant of the tag at the current index.
     * If the discriminant is not set, it returns `0`.
     *
     * @returns The discriminant value.
     */
    discriminant(): number;
    /**
     * Sets the discriminant of the tag at the current index.
     *
     * @param value - The discriminant value to set.
     */
    setDiscriminant(value: number): void;
    /**
     * Returns the data object of the tag at the current index.
     * If the data is not set, it returns an empty object. Enforces the
     * data to be a {@link ObjApi} node, use this API to manipulate the data
     * object.
     *
     * @returns The data object.
     */
    data(): ObjApi;
}