export declare const isTekken: (modelId: string) => boolean;
export interface MistralCountResult {
    approximate: true;
    tokens: number;
    tokenizer: 'heuristic' | 'mistral_v1_v3';
}
/**
 * Count tokens for a Mistral model. Always `approximate: true` (see file
 * header). For SentencePiece models, returns the `mistral-tokenizer-js`
 * count (BOS token included, matching the library's default). For Tekken
 * models (and any unknown ID — defensive), returns a `chars/4` heuristic.
 */
export declare const mistralCount: (text: string, modelId: string) => MistralCountResult;
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