import { JsxChildren } from '../types';
import { HashMetadata } from './types';
/**
 * Calculates a unique hash for a given string using SHA-256.
 *
 * First 16 characters of hash, hex encoded.
 *
 * @param {string} string - The string to be hashed.
 * @returns {string} The resulting hash as a hexadecimal string.
 */
export declare function hashString(string: string): string;
/**
 * Calculates a unique ID for the given children objects by hashing their sanitized JSON string representation.
 *
 * @param {any} childrenAsObjects - The children objects to be hashed.
 * @param {string} [context] - The context for the children.
 * @param {string} [id] - The ID for the JSX children object.
 * @param {number} [maxChars] - The maxChars limit for the JSX children object.
 * @param {string} [dataFormat] - The data format of the sources.
 * @param {function} [hashFunction] - Custom hash function.
 * @returns {string} - The unique hash of the children.
 */
export declare function hashSource({ source, context, id, maxChars, dataFormat, }: {
    source: JsxChildren | string;
} & HashMetadata, hashFunction?: (string: string) => string): string;