import { type DecryptFn } from 'graph/decrypt.js';
import { type Action, type Graph } from 'graph/index.js';
import { type Keyring, type KeysetWithSecrets } from 'keyset/index.js';
import { type SyncMessage, type SyncState } from './types.js';
/**
 * Receives a sync message from a peer and updates our sync state accordingly so that
 * `generateMessage` can determine what information they need. Also possibly updates our graph with
 * information from them.
 *
 * @returns A tuple `[graph, state]` containing our updated graph and our updated sync state with
 * this peer.
 * */
export declare const receiveMessage: <A extends Action, C>(graph: Graph<A, C>, prevState: SyncState, message: SyncMessage, keys: KeysetWithSecrets | Keyring, decrypt?: DecryptFn) => [Graph<A, C>, SyncState];
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