@ DocumentNode (location: (1:0)-(1:15))
└── children: (1 item)
    └── @ ERBContentNode (location: (1:0)-(1:15))
        ├── tag_opening: "<%%=" (location: (1:0)-(1:4))
        ├── content: " 'Test' " (location: (1:4)-(1:12))
        ├── tag_closing: "%%>" (location: (1:12)-(1:15))
        ├── parsed: false
        └── valid: true