/**
 * Pronunciation dictionary substitution utilities.
 *
 * Mirrors the Python implementation policy:
 * - Apply rules in input order
 * - partial_match=false: word-boundary exact matches only
 * - partial_match=true: substring matches (no boundaries)
 * - No re-substitution: replaced segments are shielded via opaque tokens
 *
 * Validation:
 * - pronunciation_dictionary omitted/undefined/null -> return original text
 * - pronunciation_dictionary must be an array of objects
 * - each object must have: text (string, non-empty), pronunciation (string, non-empty), partial_match (boolean)
 */
export declare class PronunciationDictionaryValidationError extends Error {
    constructor(message: string);
}
export type PronunciationDictionaryEntry = {
    text: string;
    pronunciation: string;
    partial_match: boolean;
};
export declare function applyPronunciationDictionary(text: string, pronunciation_dictionary?: unknown): string;
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