[ Header
    1
    ( "simple-heading" , [] , [] )
    [ Str "Simple" , Space , Str "Heading" ]
, Header
    2
    ( "heading-with-emphasis" , [] , [] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Emph [ Str "emphasis" ]
    ]
, Header
    3
    ( "heading-with-strong-emphasis" , [] , [] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Strong [ Str "strong" , Space , Str "emphasis" ]
    ]
, Header
    4
    ( "heading-with-code" , [] , [] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Code ( "" , [] , [] ) "code"
    ]
, Header
    5
    ( "heading-with-link" , [] , [] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Link
        ( "" , [] , [] )
        [ Str "link" ]
        ( "https://example.com" , "" )
    ]
, Header
    6
    ( "heading-with-nested-strong-emphasis" , [] , [] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Emph
        [ Str "nested"
        , Space
        , Strong [ Str "strong" ]
        , Space
        , Str "emphasis"
        ]
    ]
, Header
    1
    ( "heading-with-multiple-emphasis-and-strong-elements"
    , []
    , []
    )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Str "multiple"
    , Space
    , Emph [ Str "emphasis" ]
    , Space
    , Str "and"
    , Space
    , Strong [ Str "strong" ]
    , Space
    , Str "elements"
    ]
, Header
    2
    ( "heading-with-code-and-emphasis" , [] , [] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Code ( "" , [] , [] ) "code"
    , Space
    , Str "and"
    , Space
    , Emph [ Str "emphasis" ]
    ]
, Header
    3
    ( "heading-with-strikeout" , [] , [] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Strikeout [ Str "strikeout" ]
    ]
, Header
    4
    ( "heading-with-superscript-and-subscript" , [] , [] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Str "super"
    , Superscript [ Str "script" ]
    , Space
    , Str "and"
    , Space
    , Str "sub"
    , Subscript [ Str "script" ]
    ]
, Header
    1
    ( "custom-id" , [] , [] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Str "attributes"
    ]
, Header
    2
    ( "heading-with-classes"
    , [ "important" , "highlight" ]
    , []
    )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Str "classes"
    ]
, Header
    3
    ( "heading-with-key-value" , [] , [ ( "width" , "100" ) ] )
    [ Str "Heading"
    , Space
    , Str "with"
    , Space
    , Str "key-value"
    ]
, Header 1 ( "id" , [] , [] ) [ Str "Test" ]
]
