export interface ModelSpec {
    decoderKind: string;
    preprocessor?: string | null;
    encoder?: string | null;
    decoderJoint?: string | null;
    vocabCandidates: string[];
    whisperModelPattern?: RegExp;
}
export interface ModelConfig {
    model_type?: string;
    version?: string;
    features_size?: number;
    num_mel_bins?: number;
    subsampling_factor?: number;
    max_tokens_per_step?: number;
    max_sequence_length?: number;
    sample_rate?: number;
    feature_extraction_params?: {
        sample_rate?: number;
        n_mels?: number;
        n_fft?: number;
        window_size?: number;
        window_stride?: number;
        preemphasis_coefficient?: number;
        [key: string]: unknown;
    };
    architectures?: string[];
    decoder_params?: {
        vocabulary?: string[];
        [key: string]: unknown;
    };
    pad_token_id?: number;
    [key: string]: unknown;
}
export declare const MODEL_TYPES: Record<string, ModelSpec>;
/** Parse a model `config.json` payload into an object. */
export declare function parseConfigText(configText: string): ModelConfig;
/** Detect model family/runtime spec from parsed config. */
export declare function detectModelType(config: ModelConfig): {
    modelType: string;
    spec: ModelSpec;
};
/** Build Tone CTC vocabulary text from config when available. */
export declare function toneVocabularyTextFromConfig(config: ModelConfig): string | null;
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