/**
 * Transliterator — converts between scripts.
 * Primary use: Devanagari (Hindi) → Latin (Hinglish), Urdu → Roman.
 * This enables detection of Hindi/Urdu abuse written in Roman script.
 */
/**
 * Transliterate Devanagari text to Latin script.
 * Handles inherent vowel 'a' in consonants: a consonant gets 'a' appended
 * unless followed by a virama (्) or a vowel mark (matra).
 */
export declare function devanagariToLatin(text: string): string;
/**
 * Generate normalized Hinglish variants of a Roman-script word.
 * Since Hinglish has no standard spelling, we generate possible forms.
 */
export declare function hinglishVariants(word: string): string[];
/**
 * Check if a text contains Devanagari characters.
 */
export declare function hasDevanagari(text: string): boolean;
/**
 * Full transliteration pipeline: if the text has Devanagari, convert it.
 * Otherwise return the original text.
 */
export declare function transliterate(text: string): string[];