import { z } from 'zod';
export declare const ResponseLanguageSchema: z.ZodEnum<{
    en: "en";
    auto: "auto";
    "zh-CN": "zh-CN";
}>;
export type ResponseLanguage = z.infer<typeof ResponseLanguageSchema>;
export declare function resolveResponseLanguage(userPreference: ResponseLanguage, sessionPreference?: ResponseLanguage): ResponseLanguage;