/**
 * Listen to real-time slot changes via WebSocket.
 *
 * Cadence: `throttleMs` runs an own trailing-edge timer; `throttleMs +
 * scheduler` joins the scheduler's group at that cadence; `scheduler` alone
 * throws; neither delivers immediately.
 */
import { type RpcSubscriptions, type Slot, type SolanaRpcSubscriptionsApi } from '@solana/kit';
import type { SubscriptionHandle } from './subscriptionHandle';
import type { WsCadenceOptions } from './wsCadenceOptions';
import type { WsListenerObservability } from './wsListenerObservability';
export interface SlotChangeEvent {
    slot: Slot;
}
export type SlotChangeCallback = (event: SlotChangeEvent) => void;
export interface SlotListenerParams extends WsListenerObservability, WsCadenceOptions {
    wsRpc: RpcSubscriptions<SolanaRpcSubscriptionsApi>;
    onChange: SlotChangeCallback;
}
export declare function listenToSlotChanges(params: SlotListenerParams): SubscriptionHandle;
//# sourceMappingURL=slotListener.d.ts.map