import { EventEmitter } from 'events';
import type { Context } from '../context.js';
export interface MemoryOptions {
    maxHeapSize?: number;
    gcThreshold?: number;
    checkInterval?: number;
    enableGC?: boolean;
}
export declare class MemoryMonitor extends EventEmitter {
    private options;
    private intervalId;
    private stats;
    constructor(options?: MemoryOptions);
    start(): void;
    stop(): void;
    private checkMemory;
    private detectMemoryLeak;
    private calculateTrend;
    getStats(): {
        current: NodeJS.MemoryUsage;
        history: {
            heapUsed: number[];
            heapTotal: number[];
            external: number[];
            rss: number[];
        };
        options: Required<MemoryOptions>;
    };
}
export declare function memoryPlugin(options?: MemoryOptions): (ctx: Context, next: () => Promise<any>) => Promise<void>;
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