/**
 * Process management utilities
 */
/// <reference types="node" />
import { ChildProcess } from 'child_process';
/**
 * Kill process with SIGTERM, escalating to SIGKILL if it doesn't exit.
 * Uses exitCode === null (not proc.killed) to check if process is still running,
 * since proc.killed only indicates a signal was sent, not that the process exited.
 */
export declare function killWithEscalation(proc: ChildProcess, gracePeriodMs?: number): void;
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