/**
 * Read a template file from the templates directory
 * @param filename Template filename
 * @returns Template content as string
 */
export declare function readTemplate(filename: string): string;
/**
 * Write content to a file
 * @param filePath Path to write the file
 * @param content Content to write
 */
export declare function writeFile(filePath: string, content: string): void;
/**
 * Generate a unique filename for a test
 * @param prefix Prefix for the filename
 * @param extension File extension
 * @returns Unique filename
 */
export declare function generateUniqueFilename(prefix: string, extension?: string): string;
/**
 * Simple template engine to replace placeholders in templates
 * @param template Template string
 * @param data Data object with values to replace
 * @returns Processed template
 */
export declare function processTemplate(template: string, data: Record<string, any>): string;