export interface Vocabulary {
    encoder: string[];
    decoder: string[];
}
export declare const VOCAB: Vocabulary;
export interface Alignment {
    phoneme: string;
    phonemeIndex: number;
    /**
     * Original input character index for this phoneme alignment.
     * Uses -1 sentinel when the input has no non-whitespace characters.
     */
    charIndex: number;
}
export interface G2PResult {
    ipa: string;
    displayIpa: string;
    alignments: Alignment[];
}
export type PreserveLiteralsMode = "none" | "punct";
export interface EncodedText {
    ids: bigint[];
    length: number;
    positionMap: number[];
}
export declare const encodeText: (text: string, maxInputLen: number) => EncodedText;
export declare const decoderIds: {
    pad: number;
    sos: number;
    eos: number;
    unk: number;
};
export declare const decodeIdsToResult: (ids: ArrayLike<number | bigint>, attnIndices: ArrayLike<number | bigint>, positionMap: number[]) => G2PResult;
export interface PreparedPredictionText {
    modelText: string;
    charIndexMap: number[];
}
export declare const prepareTextForPrediction: (text: string, preserveLiterals: PreserveLiteralsMode) => PreparedPredictionText;
export declare const buildDisplayIpa: (ipa: string, alignments: Alignment[], originalText: string) => string;