/**
 * Create and initialize a nuid.
 *
 * @api private
 */
export declare class Nuid {
    buf: Uint8Array;
    seq: number;
    inc: number;
    constructor();
    /**
       * Initializes a nuid with a crypto random prefix,
       * and pseudo-random sequence and increment.
       *
       * @api private
       */
    private init;
    /**
       * Initializes the pseudo randmon sequence number and the increment range.
       *
       * @api private
       */
    private initSeqAndInc;
    /**
       * Sets the prefix from crypto random bytes. Converts to base36.
       *
       * @api private
       */
    private setPre;
    /**
       * Fills the sequence part of the nuid as base36 from this.seq.
       *
       * @api private
       */
    private fillSeq;
    /**
       * Returns the next nuid.
       *
       * @api private
       */
    next(): string;
    reset(): void;
}
export declare const nuid: Nuid;