import { ValidationException } from './ValidationException';
export type JSONType = string | number | boolean | null | JSONType[] | {
    [key: string]: JSONType;
};
/**
 * Is the value a valid JSON value?
 * See: https://www.ecma-international.org/publications-and-standards/standards/ecma-404/
 *
 * @example
 * ```ts
 * isJSON({ 'foo': 'bar' }) // true
 * isJSON(new Map()) // false
 * ```
 *
 * @param value the value to check
 * @returns a boolean indicating whether the value is the expected type
 */
export declare const isJSON: (value: unknown) => value is JSONType;
/**
 * Validate that the value is a valid JSON value.
 * See: https://www.ecma-international.org/publications-and-standards/standards/ecma-404/
 *
 * @example
 * ```ts
 * validateJSON({ 'foo': 'bar' }) // null
 * validateJSON(new Map()) // ValidationException
 * ```
 *
 * @param value the value to check
 * @returns `null` if the value is the expected type or a `ValidationException`
 * if not
 */
export declare const validateJSON: (value: unknown) => ValidationException | null;
/**
 * Assert that the value is a valid JSON value.
 * See: https://www.ecma-international.org/publications-and-standards/standards/ecma-404/
 *
 * @example
 * ```ts
 * assertJSON({ 'foo': 'bar' }) // void
 * assertJSON(new Map()) // throws AssertionException
 * ```
 *
 * @param value the value to check
 * @throws an `AssertionException` if the value is not the expected type
 */
export declare const assertJSON: (value: unknown) => asserts value is JSONType;