SilverStripe\Blog\Model\Blog:
  my-blog:
    Title: My Blog

SilverStripe\Blog\Model\BlogPost:
  post-a:
    Title: September Digest
    PublishDate: 2017-09-01 00:00:00
    ParentID: =>SilverStripe\Blog\Model\Blog.my-blog
  post-b:
    Title: August is Awesome
    PublishDate: 2017-08-01 00:00:00
    ParentID: =>SilverStripe\Blog\Model\Blog.my-blog
  post-c:
    Title: 2015 is so two years ago
    PublishDate: 2015-05-02 00:01:02
    ParentID: =>SilverStripe\Blog\Model\Blog.my-blog

SilverStripe\Blog\Widgets\BlogArchiveWidget:
  archive-monthly:
    NumberToDisplay: 5
    ArchiveType: Monthly
    BlogID: =>SilverStripe\Blog\Model\Blog.my-blog
  archive-yearly:
    NumberToDisplay: 5
    ArchiveType: Yearly
    BlogID: =>SilverStripe\Blog\Model\Blog.my-blog