/**
 * `createTxGroup` — synthesis layer on top of per-hash tracker
 * subscriptions. Spec §18.1, v0.8.0 design F3.
 *
 * Listens to each member hash via the tracker's existing subscribe API,
 * tracks confirmed/failed counters, and emits group-progress /
 * group-complete / group-failed once per terminal transition. Member
 * unsubscribes are torn down on stop().
 *
 * Replacement does NOT auto-promote — if a member is replaced via
 * same-nonce bump, the group emits group-failed with reason
 * 'replaced'. The consumer constructs a new group with the new hash
 * if they want the replacement to count.
 *
 * Edge case: an empty hashes array immediately emits group-complete
 * with total=0 (vacuously all confirmed) and marks the group terminal.
 * This is a safe, predictable default and matches the mathematical
 * sense of "all zero members confirmed."
 */
import type { Hash } from './events.js';
import type { GroupOptions, TxGroupSubscription, TxTracker } from './tracker.js';
/**
 * Construct a group subscription that synthesises per-member `TxEvent`
 * streams into group-level events.
 *
 * @param tracker - The tracker instance to call `subscribe` on.
 * @param hashes  - Member transaction hashes. Order is not significant.
 * @param options - Optional group-level and member-level overrides.
 */
export declare const createTxGroup: (tracker: TxTracker, hashes: Hash[], options?: GroupOptions) => TxGroupSubscription;
//# sourceMappingURL=group.d.ts.map