interface BrowserCapabilities {
    playwright: boolean;
    crawlee: boolean;
    checked: boolean;
}
/**
 * Detect available browser automation packages at runtime.
 * Results are cached after first check — subsequent calls return instantly.
 *
 * Each backend is tested via a dynamic `await import()`. If the package
 * isn't installed, the import throws and the capability is marked false.
 */
export declare function detectBrowserCapabilities(): Promise<BrowserCapabilities>;
/**
 * Return cached capabilities without triggering detection.
 * Useful for synchronous checks after detection has run.
 */
export declare function getCachedCapabilities(): BrowserCapabilities;
/**
 * Reset cached capabilities (for testing).
 */
export declare function __resetBrowserDetection(): void;
export {};
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