import { AddUpdatesResult, ReplaceUpdatesResult, StoredUpdates, UpdatesStore } from '@casual-simulation/causal-trees/core2';
import { Collection } from 'mongodb';
/**
 * Defines a class that is able to store updates for a branch in a MongoDB collection.
 */
export declare class MongoDBUpdatesStore implements UpdatesStore {
    private _updates;
    constructor(updates: Collection<MongoDBUpdate>);
    init(): Promise<void>;
    getUpdates(branch: string): Promise<StoredUpdates>;
    addUpdates(branch: string, updates: string[]): Promise<AddUpdatesResult>;
    clearUpdates(branch: string): Promise<void>;
    replaceUpdates(branch: string, updatesToRemove: StoredUpdates, updatesToAdd: string[]): Promise<ReplaceUpdatesResult>;
}
export interface MongoDBUpdate {
    branch: string;
    updates: string[];
    timestamps?: number[];
}
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