import { BaseError } from 'make-error';
import { Constrained, Rule } from '../../core';
export declare class InvalidJsonAsStringError extends BaseError {
    constructor();
}
export declare const jsonAsStringSymbol: unique symbol;
export type JsonAsString = Constrained<typeof jsonAsStringSymbol, string>;
export declare function isJsonAsString(input: unknown): input is JsonAsString;
export declare function sanitizeJsonFromString<T>(jsonRule: Rule<T>): (input: unknown) => T;