/**
 * Public Nuid interface — generates 22-char base62 unique identifiers.
 * Output format matches Go `nats-io/nuid`.
 */
export type Nuid = {
    /** Returns the next 22-char base62 nuid. */
    next(): string;
    /** Re-randomizes prefix and sequence counter. */
    reset(): void;
};
/** Constructor for an isolated `Nuid` instance. */
export declare const Nuid: new () => Nuid;
/** Shared global `Nuid` — call `next()` directly. */
export declare const nuid: Nuid;