@ DocumentNode (location: (1:0)-(4:0))
└── children: (2 items)
    ├── @ HTMLElementNode (location: (1:0)-(3:5))
    │   ├── open_tag:
    │   │   └── @ HTMLOpenTagNode (location: (1:0)-(1:4))
    │   │       ├── tag_opening: "<" (location: (1:0)-(1:1))
    │   │       ├── tag_name: "h1" (location: (1:1)-(1:3))
    │   │       ├── tag_closing: ">" (location: (1:3)-(1:4))
    │   │       ├── children: []
    │   │       └── is_void: false
    │   │
    │   ├── tag_name: "h1" (location: (1:1)-(1:3))
    │   ├── body: (1 item)
    │   │   └── @ HTMLTextNode (location: (1:4)-(3:0))
    │   │       └── content: "\n  Title 1\n"
    │   │
    │   ├── close_tag:
    │   │   └── @ HTMLCloseTagNode (location: (3:0)-(3:5))
    │   │       ├── tag_opening: "</" (location: (3:0)-(3:2))
    │   │       ├── tag_name: "h1" (location: (3:2)-(3:4))
    │   │       └── tag_closing: ">" (location: (3:4)-(3:5))
    │   │
    │   └── is_void: false
    │
    └── @ HTMLTextNode (location: (3:5)-(4:0))
        └── content: "\n"