import { z } from 'zod';
/**
 * The `holder` of a verifiable presentation.
 *
 * VCDM 2.0: "If present, the value MUST be either a URL or an object
 * containing an id property." Deliberately not `IssuerSchema`: a holder
 * carries no issuer-specific fields.
 */
export declare const HolderObjectSchema: z.ZodObject<{
    id: z.ZodString;
}, "passthrough", z.ZodTypeAny, z.objectOutputType<{
    id: z.ZodString;
}, z.ZodTypeAny, "passthrough">, z.objectInputType<{
    id: z.ZodString;
}, z.ZodTypeAny, "passthrough">>;
export declare const HolderSchema: z.ZodUnion<[z.ZodString, z.ZodObject<{
    id: z.ZodString;
}, "passthrough", z.ZodTypeAny, z.objectOutputType<{
    id: z.ZodString;
}, z.ZodTypeAny, "passthrough">, z.objectInputType<{
    id: z.ZodString;
}, z.ZodTypeAny, "passthrough">>]>;
export type Holder = z.infer<typeof HolderSchema>;
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