/**
 * AWS CloudFront XML Utilities
 * Generates XML bodies for CloudFront API requests
 *
 * @see https://docs.aws.amazon.com/cloudfront/latest/APIReference/API_CreateInvalidation.html
 */
/**
 * Generate XML body for CloudFront invalidation request
 *
 * @param paths - List of paths to invalidate (e.g., ['/images/*', '/styles/main.css'])
 * @param callerReference - Unique identifier for this invalidation request
 * @returns XML string formatted for CloudFront API
 *
 * @example
 * ```typescript
 * const xml = generateCloudFrontInvalidationXML(
 *   ['/images/*', '/styles/main.css'],
 *   'api-1234567890'
 * );
 * ```
 */
export declare function generateCloudFrontInvalidationXML(paths: string[], callerReference: string): string;
/**
 * Generate unique caller reference for CloudFront invalidation
 * Uses timestamp-based unique identifier
 *
 * @param prefix - Optional prefix for the caller reference (default: 'api')
 * @returns Unique caller reference string
 *
 * @example
 * ```typescript
 * const ref = generateCloudFrontCallerReference(); // 'api-1234567890123'
 * const customRef = generateCloudFrontCallerReference('storage'); // 'storage-1234567890123'
 * ```
 */
export declare function generateCloudFrontCallerReference(prefix?: string): string;
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