$file->files()
Returns the parent Files collection
$file->files(): Kirby\Cms\FilesReturn type
Parent class
Example
if($file = $page->files()->first()) {
    echo 'The first file in the collection is: ' . $file->title();
}Returns the parent Files collection
$file->files(): Kirby\Cms\Filesif($file = $page->files()->first()) {
    echo 'The first file in the collection is: ' . $file->title();
}