== Section Level 1
>>>
Document
  { docMeta =
      Meta
        { docTitle = []
        , docTitleAttributes = Nothing
        , docAuthors = []
        , docRevision = Nothing
        , docAttributes = fromList [ ( "sectids" , "" ) ]
        }
  , docBlocks =
      [ Block
          Attr
          ( [] , fromList [ ( "id" , "_section_level_1" ) ] )
          Nothing
          (Section (Level 1) [ Inline mempty (Str "Section Level 1") ] [])
      ]
  }