import { IMetricsCollector } from '../../core/collectors';
import { MetricSnapshot } from '@ologstream/types';
export declare class NodeMetricsCollector implements IMetricsCollector {
    private previousCPUUsage;
    private previousTime;
    collectMetrics(): MetricSnapshot;
    private calculateCPUUsage;
    private calculateMemoryUsage;
    destroy(): void;
}