/**
 * Creates a cache directory for the test kit
 */
export declare function createCacheDir(name: string): Promise<string>;
/**
 * Downloads a browser extension from a URL
 */
export declare function downloadExtension(params: {
    extensionUrl: string;
    cacheDir: string;
    filename: string;
    forceDownload?: boolean;
}): Promise<{
    filePath: string;
    fromCache: boolean;
}>;
/**
 * Extracts a browser extension from a zip file
 */
export declare function extractExtension(params: {
    zipFilePath: string;
    forceExtract?: boolean;
}): Promise<{
    extractedPath: string;
    fromCache: boolean;
}>;
/**
 * Sets up the MetaMask extension for testing
 * Downloads and extracts the extension if needed
 */
export declare function downloadMetaMask(): Promise<string>;