/**
 * `NuidImpl` is the internal implementation backing the public `Nuid`
 * interface exported from `mod.ts`. Generates 22-base-62-character ids:
 * 12-char crypto-random prefix + 10-char base-62 sequence.
 *
 * Output format matches Go `nats-io/nuid` — same alphabet and length —
 * so nuids generated here look the same as nuids generated by Go.
 */
export declare class NuidImpl {
    buf: Uint8Array;
    private cbuf;
    seqHi: number;
    seqLo: number;
    inc: number;
    inited: boolean;
    constructor();
    /**
     * Initializes a nuid with a crypto random prefix,
     * and pseudo-random sequence and increment. This function
     * is only called if any api on a nuid is called.
     *
     * @ignore
     */
    private init;
    /**
     * Initializes the pseudo random sequence number and the increment range.
     * @ignore
     */
    private initSeqAndInc;
    /**
     * Sets the prefix from crypto random bytes. Converts them to base62.
     *
     * @ignore
     */
    private setPre;
    /**
     * Fills the sequence portion of the buffer as base62 from
     * the split-int seq (seqHi, seqLo). Performs long division
     * by 62 over the 64-bit value using doubles only — no bigint.
     *
     * @ignore
     */
    private fillSeq;
    /**
     * Returns the next nuid.
     */
    next(): string;
    /**
     * Resets the prefix and counter for the nuid. This is typically
     * called automatically from within next() if the current sequence
     * exceeds the resolution of the nuid.
     */
    reset(): void;
}
/**
 * A nuid instance you can use by simply calling `next()` on it.
 */
export declare const nuid: NuidImpl;