In this example, we are delivering a PDF file located in `/path/to/myfile.pdf` with the filename `myfile.pdf` and the MIME type `application/pdf`. Example 2: Delivering an image file with custom headersphp $filePath = '/path/to/myimage.jpg'; $fileName = 'myimage.jpg'; $fileType = 'image/jpeg'; $headers = array( 'Cache-Control' => 'no-cache, must-revalidate', 'Expires' => 'Sat, 26 Jul 1997 05:00:00 GMT' ); ilUtil::deliverFile($filePath, $fileName, $fileType, $headers); ``` In this example, we are delivering an image file located in `/path/to/myimage.jpg` with the filename `myimage.jpg` and the MIME type `image/jpeg`. We are also adding custom headers to the response, including a cache control directive and an expiration date. From the code examples above, it is clear that ilUtil is a package/library for handling various tasks required for web development using the ILIAS learning management system.