import type { Address } from 'viem';
import { errorContent } from './errors.js';
export interface RequireAuthOk {
    ok: true;
    rootAddress: Address;
    agentAddress: Address;
    agentExpiry: number;
}
export interface RequireAuthErr {
    ok: false;
    error: ReturnType<typeof errorContent>;
}
export type RequireAuthResult = RequireAuthOk | RequireAuthErr;
/** Auth guard: short-circuit on `result.ok === false`, else read meta from the `ok: true` branch. */
export declare function requireAuth(): Promise<RequireAuthResult>;
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