/**
 * Bundle 提交共享辅助（Merkle / BlockRazor 共用）
 */
/** 客户端缓存 TTL（复用连接，减少初始化开销） */
export declare const CLIENT_CACHE_TTL_MS: number;
export declare function submitBundlesSequential<T>(bundles: string[][], submitFn: (signedTransactions: string[]) => Promise<T>): Promise<T[]>;
export declare function submitBundlesParallel<T>(bundles: string[][], submitFn: (signedTransactions: string[]) => Promise<T>): Promise<T[]>;