import type { StateManager } from "../state.js";
export interface FailoverOptions {
    /** Account index to try first */
    accountIndex: number;
    /** Maximum failover attempts (default: 2) */
    maxFailovers?: number;
}
export interface FailoverResult<T> {
    result: T;
    /** Account index that actually succeeded */
    usedAccountIndex: number;
    /** Number of failover attempts */
    failoverCount: number;
}
/**
 * Execute operation with automatic account failover.
 * On retryable/rate_limited errors, tries next healthy account.
 * On fatal errors, does NOT failover.
 */
export declare function withFailover<T>(state: StateManager, options: FailoverOptions, operation: (accountIndex: number) => Promise<T>): Promise<FailoverResult<T>>;
//# sourceMappingURL=failover.d.ts.map