import type { ThreadRuntimeSample } from "../memory/thread-memory.js";
export declare function captureRuntimeSampleStart(): {
    cpu: NodeJS.CpuUsage;
    startedAt: bigint;
};
export declare function finishRuntimeSample(start: {
    cpu: NodeJS.CpuUsage;
    startedAt: bigint;
}): ThreadRuntimeSample;
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