@ DocumentNode (location: (1:0)-(1:14))
└── children: (1 item)
    └── @ ERBContentNode (location: (1:0)-(1:14))
        ├── tag_opening: "<%%" (location: (1:0)-(1:3))
        ├── content: " 'Test' " (location: (1:3)-(1:11))
        ├── tag_closing: "%%>" (location: (1:11)-(1:14))
        ├── parsed: false
        └── valid: true