import type { Artifact, CommittedEventMetadata, Message, Messages, Snapshot, State, Streamable } from "../types";
/**
 * Commits events to artifact's stream
 * @param artifact the streamable/reducible artifact
 * @param events the new events to commit
 * @param snapshot last reducible snapshot (when reducible artifact)
 * @param metadata commit metadata
 * @returns reduced event snapshots (when reducible artifact)
 */
export declare function commit<S extends State, C extends Messages, E extends Messages>(artifact: Artifact<S, C, E> & Streamable, events: Message<E>[], snapshot: Snapshot<S, E>, metadata: CommittedEventMetadata): Promise<Snapshot<S, E>[]>;
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