/**
 * Naive PII tokenizer that replaces sensitive string values with deterministic tokens.
 * This keeps raw values out of logs and the model context while allowing round-tripping.
 */
export declare class PIITokenizer {
    private readonly tokenToValue;
    private counter;
    tokenize<T>(value: T): T;
    detokenize<T>(value: T): T;
    private transform;
    private encodeString;
    private decodeString;
    private shouldTokenize;
}
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