import { type DocumentContent, type DocumentContext } from "../../document/index.js";
import { AbstractJsonable } from "../abstractJsonable.js";
import type { JsonString } from "../jsonTypes.js";
export declare class StringJsonable extends AbstractJsonable {
    private readonly content;
    readonly type: "string";
    constructor(content: DocumentContent, probability: number | undefined, weight: number | undefined);
    protected toJSONImpl(keyOrIndex: string | number, context: DocumentContext): JsonString | undefined;
}