export type LangInfo = {
    code: string;
    fullName: string;
    language: string;
    region: string;
    description: string;
};
/**
 * Normalize and map array of codes to full names
 */
export declare function mapLanguages(codes: string[]): Record<string, string>;
/**
 * Get language info by code
 */
export declare function getLanguageInfo(code: string): LangInfo | null;
/**
 * Get all language variants from a base language code
 */
export declare function getAvailableVariants(baseLangs: string[] | string): Record<string, string>;
/**
 * ✅ NEW: Return all codes with their full names
 */
export declare function listAllLanguages(): Record<string, string>;
/**
 * ✅ NEW: Search by full name, region or language (case-insensitive)
 */
export declare function searchByName(term: string): Record<string, string>;
/**
 * ✅ NEW: Group language codes under base language
 */
export declare function groupByLanguage(): Record<string, string[]>;
/**
 * ✅ NEW: Validate if a code exists in dataset
 */
export declare function validateCode(code: string): boolean;