import { Datastore, RemoveOptions, UpdateOptions } from "./bridge-store";
type Doc = Record<string, unknown>;
type Query = Record<string, unknown>;
/**
 * A minimal in-memory {@link Datastore} implementation. Suitable for tests,
 * or for bridges which do not need their {@link BridgeStore}s to persist
 * data across restarts.
 */
export declare class MemoryDatastore implements Datastore {
    private docs;
    insert(newDocs: Doc[]): Promise<Doc[]>;
    update(query: Query, updateQuery: Query, options?: UpdateOptions): Promise<number>;
    remove(query: Query, options: RemoveOptions): Promise<number>;
    findOne(query: Query): Promise<Doc | null>;
    find(query: Query): Promise<Doc[]>;
    ensureIndex(): Promise<void>;
}
export {};