/**
 * Base stealth script for hiding automation indicators
 * Includes error stack hiding, console patching, and automation flags removal
 *
 * 2024-2025 Enhancements:
 * - deviceMemory spoofing
 * - pdfViewerEnabled consistency
 * - Notification.permission handling
 * - Bluetooth/USB/Serial API masking
 * - Speech synthesis voice spoofing
 * - Credentials API consistency
 */
export declare const createStealthScript: () => string;
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