import z from 'zod';
/**
 * Schema for {@link RequiredUserId} documents.
 */
export declare const RequiredUserIdSchema: z.ZodObject<{
    _id: z.ZodPipe<z.ZodDefault<z.ZodUUID>, z.ZodTransform<`${string}-${string}-${string}-${string}-${string}`, string>>;
    userId: z.ZodPipe<z.ZodUUID, z.ZodTransform<`${string}-${string}-${string}-${string}-${string}`, string>>;
}, z.z.core.$strip>;
/**
 * A document that has a `userId` that must be associated to be valid.
 */
export type RequiredUserId = z.infer<typeof RequiredUserIdSchema>;
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