import type { ImprovementEvent, ImprovementStore } from './types.js';
export declare class MemoryImprovementStore implements ImprovementStore {
    #private;
    append(event: ImprovementEvent): 'stored' | 'replay';
    appendBatch(events: readonly ImprovementEvent[]): readonly ('stored' | 'replay')[];
    events(): readonly ImprovementEvent[];
}