import { type ProcessIdentity } from '../task/process.js';
export type FileLockAcquisitionErrorHandler = (error: unknown) => never;
export declare function isRecordedProcessAlive(pid: number, processIdentity: ProcessIdentity | undefined): boolean;
export declare function withFileLock<T>(lockPath: string, action: () => T, options?: {
    timeoutMs?: number;
    onAcquisitionError?: FileLockAcquisitionErrorHandler;
}): T;
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