export interface ResourceSample {
    /** Aggregate CPU utilisation across all cores, 0-100. */
    cpuPercent: number;
    /** Per-core utilisation, 0-100 (index = core). */
    cpuPerCore: number[];
    cpuCount: number;
    memUsedMb: number;
    memTotalMb: number;
    memPercent: number;
    /** 1-minute load average (0 on platforms that don't report it). */
    loadAvg1: number;
    /** Bytes/sec since the previous sample (Linux only; omitted elsewhere). */
    netRxBytesPerSec?: number;
    netTxBytesPerSec?: number;
    diskReadBytesPerSec?: number;
    diskWriteBytesPerSec?: number;
}
export declare class ResourceCollector {
    private prevCpu;
    private prevNet;
    private prevDisk;
    private prevAt;
    /** Take a sample relative to the previous call. Safe to call every heartbeat. */
    sample(): ResourceSample;
}
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