/ittf/models/cheatsheets/md/t/base.ittf.ittf (primary)

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   1 $group
   2     element headings
   3         tag
   4         ast
   5         category
   6         item
   7             title Headings
   8             ittf
   9                 h1 Heading 1
  10                 h2 Heading 2
  11                 h3 Heading 2