export declare const metric: readonly ["completeness", "coherence", "conciseness", "output_latency_milliseconds", "instruction_following", "factuality"];
/**
 * Clean a string by replacing HTML entities with their respective characters.
 *
 * @param str - The string to clean.
 * @returns The cleaned string with all HTML entities replaced with their respective characters.
 */
export declare const decodeHtmlEntities: (str?: string) => string;