import { NodeRuntimeMetricsOptions } from '@sentry/node';
/**
 * Which metrics to collect in the Bun runtime metrics integration.
 * Explicitly picks the metrics available in Bun from `NodeRuntimeMetricsOptions['collect']`.
 * Event loop delay percentiles are excluded because `monitorEventLoopDelay` is unavailable in Bun.
 */
type BunCollectOptions = Pick<NonNullable<NodeRuntimeMetricsOptions['collect']>, 'cpuUtilization' | 'cpuTime' | 'memHeapUsed' | 'memHeapTotal' | 'memRss' | 'memExternal' | 'eventLoopUtilization' | 'uptime'>;
export interface BunRuntimeMetricsOptions {
    /**
     * Which metrics to collect.
     *
     * Default on (6 metrics):
     * - `cpuUtilization` — CPU utilization ratio
     * - `memRss` — Resident Set Size (actual memory footprint)
     * - `memHeapUsed` — V8 heap currently in use
     * - `memHeapTotal` — total V8 heap allocated
     * - `eventLoopUtilization` — fraction of time the event loop was active
     * - `uptime` — process uptime (detect restarts/crashes)
     *
     * Default off (opt-in):
     * - `cpuTime` — raw user/system CPU time in seconds
     * - `memExternal` — external/ArrayBuffer memory (relevant for native addons)
     *
     * Note: event loop delay percentiles (p50, p99, etc.) are not available in Bun
     * because `monitorEventLoopDelay` from `perf_hooks` is not implemented.
     */
    collect?: BunCollectOptions;
    /**
     * How often to collect metrics, in milliseconds.
     * Minimum allowed value is 1000ms.
     * @default 30000
     * @minimum 1000
     */
    collectionIntervalMs?: number;
}
/**
 * Automatically collects Bun runtime metrics and emits them to Sentry.
 *
 * @example
 * ```ts
 * Sentry.init({
 *   integrations: [
 *     Sentry.bunRuntimeMetricsIntegration(),
 *   ],
 * });
 * ```
 */
export declare const bunRuntimeMetricsIntegration: (options?: BunRuntimeMetricsOptions | undefined) => import("@sentry/core").Integration;
export {};
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