/**
 * 42 Header structure with all required fields
 */
interface Header42 {
    filename: string;
    username: string;
    email: string;
    createdDate: string;
    createdBy: string;
    updatedDate: string;
    updatedBy: string;
}
/**
 * Generate a 42 header for a given file
 */
export declare function generate42Header(filePath: string): Promise<string>;
/**
 * Check if content already has a 42 header
 * Returns true if the first 11 lines match the 42 header pattern
 */
export declare function has42Header(content: string): boolean;
/**
 * Extract header information from existing 42 header
 * Returns null if header is invalid
 */
export declare function extractHeaderInfo(content: string): Header42 | null;
/**
 * Update an existing 42 header with new information
 * Preserves creation info, updates the updated fields
 */
export declare function update42Header(content: string, filePath: string): Promise<string>;
export {};