/**
 * Dependency Checker - Check if optional dependencies are installed
 */
export declare class DependencyChecker {
    /**
     * Check if a module is installed
     */
    static isModuleInstalled(moduleName: string): boolean;
    /**
     * Require a module with helpful error message if not installed
     */
    static requireModule<T = any>(moduleName: string, installCommand?: string): T;
    /**
     * Try to require a module, return null if not installed
     */
    static tryRequireModule<T = any>(moduleName: string): T | null;
    /**
     * Check if Tesseract.js is installed
     */
    static isTesseractInstalled(): boolean;
    /**
     * Check if Google Vision API is installed
     */
    static isGoogleVisionInstalled(): boolean;
    /**
     * Check if Azure Computer Vision is installed
     */
    static isAzureComputerVisionInstalled(): boolean;
    /**
     * Get installation instructions for OCR provider
     */
    static getInstallInstructions(provider: string): string;
}
//# sourceMappingURL=dependency-checker.d.ts.map