import fs from 'node:fs';
export type UnsafeFilesystemEntryKind = 'symbolic-link' | 'non-regular' | 'changed-during-read';
export declare class UnsafeFilesystemEntryError extends Error {
    readonly kind: UnsafeFilesystemEntryKind;
    readonly filePath: string;
    constructor(filePath: string, kind: UnsafeFilesystemEntryKind, options?: ErrorOptions);
}
export declare function sameFileIdentity(first: fs.Stats, second: fs.Stats): boolean;
/** Read one stable regular file without following a symlink or blocking on a FIFO. */
export declare function readRegularFileNoFollow(filePath: string): Buffer;