/**
 * .what = detects if an error is an EEXIST error from symlink creation
 * .why = extracted guard for testability and reuse in race condition guards
 *
 * .note = native fs errors may not pass `instanceof Error` in some Node.js
 *         contexts (e.g., cross-realm, vm, or jest transform quirks), so we
 *         check `.code` property first before instanceof
 */
export declare const isSymlinkEexistError: (error: unknown) => boolean;