import { SyncEvent } from '../types';
export declare type BroadcastEvent<CommitMetadata, Delta, Presence> = {
    event: SyncEvent<CommitMetadata, Delta, Presence>;
    remoteOrigin: boolean;
};
export declare type EventChannel<CommitMetadata, Delta, Presence> = {
    onEvent(cb: (ev: BroadcastEvent<CommitMetadata, Delta, Presence>) => void): void;
    sendEvent(ev: BroadcastEvent<CommitMetadata, Delta, Presence>): void | Promise<void>;
    shutdown(): void | Promise<void>;
};