import { z } from 'zod';
export declare const create_uuid: () => Uuid;
export declare const Uuid: z.core.$ZodBranded<z.ZodUUID, "Uuid", "out">;
export type Uuid = z.infer<typeof Uuid>;
export declare const UuidWithDefault: z.ZodDefault<z.core.$ZodBranded<z.ZodUUID, "Uuid", "out">>;
export type UuidWithDefault = z.infer<typeof UuidWithDefault>;
/**
 * Loosely validates a UUID string.
 */
export declare const is_uuid: (str: string) => boolean;
/**
 * Postgres doesn't support the namespace prefix, so neither does Felt.
 * For more see the UUID RFC - https://tools.ietf.org/html/rfc4122
 * The Ajv validator does support the namespace, hence this custom implementation.
 */
export declare const UUID_MATCHER: RegExp;
export type ClientIdCreator = () => string;
/**
 * Creates a string id generator function, outputting `${name}_${count}` by default.
 */
export declare const create_client_id_creator: (name: string, count?: number, separator?: string) => ClientIdCreator;
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