export type NatsTrafficMetricSource = 'nats.publish' | 'nats.request' | 'nats.subscribe' | 'nats.kv';
export type NatsTrafficDirection = 'upload' | 'download';
export interface NatsTrafficMetricBucket {
    uploadBytes: number;
    downloadBytes: number;
}
export interface NatsTrafficMetrics extends NatsTrafficMetricBucket {
    bySource: Partial<Record<NatsTrafficMetricSource, NatsTrafficMetricBucket>>;
}
export type NatsTrafficRecordEvent = {
    type: 'METRICS.RECORD';
    source: NatsTrafficMetricSource;
    uploadBytes?: number;
    downloadBytes?: number;
};
export type NatsTrafficResetEvent = {
    type: 'METRICS.RESET_UPLOAD';
    source?: NatsTrafficMetricSource;
} | {
    type: 'METRICS.RESET_DOWNLOAD';
    source?: NatsTrafficMetricSource;
} | {
    type: 'METRICS.RESET_ALL';
    source?: NatsTrafficMetricSource;
};
export type NatsTrafficEvent = NatsTrafficRecordEvent | NatsTrafficResetEvent;
export declare function createEmptyTrafficMetrics(): NatsTrafficMetrics;
export declare function byteLength(value: unknown): number;
export declare function recordTrafficMetric(metrics: NatsTrafficMetrics, event: NatsTrafficRecordEvent): NatsTrafficMetrics;
export declare function resetTrafficUpload(metrics: NatsTrafficMetrics, source?: NatsTrafficMetricSource): NatsTrafficMetrics;
export declare function resetTrafficDownload(metrics: NatsTrafficMetrics, source?: NatsTrafficMetricSource): NatsTrafficMetrics;
export declare function resetTrafficAll(metrics: NatsTrafficMetrics, source?: NatsTrafficMetricSource): NatsTrafficMetrics;
//# sourceMappingURL=traffic.d.ts.map