SilverStripe\Assets\Folder:
  folder1:
    Name: myfolder
  folder2:
    Name: other
SilverStripe\Assets\File:
  file1:
    Name: file1.txt
    FileFilename: myfolder/file1.txt
    Parent: =>SilverStripe\Assets\Folder.folder1
  file2:
    Name: file2.txt
    FileFilename: myfolder/file2.txt
    Parent: =>SilverStripe\Assets\Folder.folder1
SilverStripe\Assets\Image:
  image1:
    Name: image1.jpg
    FileFilename: other/image1.jpg
    Parent: =>SilverStripe\Assets\Folder.folder2
  image2:
    Name: image2.jpg
    FileFilename: other/image2.jpg
    Parent: =>SilverStripe\Assets\Folder.folder2
SilverStripe\CMS\Tests\Model\SiteTreeFolderExtensionTest\PageWithFile:
  page1:
    Title: mypage
    URLSegment: mypage
    LinkedFile: =>SilverStripe\Assets\File.file1