@ ProgramNode (location: (0...16))
├── locals: []
└── statements:
    @ StatementsNode (location: (0...16))
    └── body: (length: 2)
        ├── @ InterpolatedStringNode (location: (0...6))
        │   ├── opening_loc: (0...1) = "\""
        │   ├── parts: (length: 1)
        │   │   └── @ EmbeddedStatementsNode (location: (1...5))
        │   │       ├── opening_loc: (1...3) = "\#{"
        │   │       ├── statements:
        │   │       │   @ StatementsNode (location: (3...4))
        │   │       │   └── body: (length: 1)
        │   │       │       └── @ IntegerNode (location: (3...4))
        │   │       │           └── flags: decimal
        │   │       └── closing_loc: (4...5) = "}"
        │   └── closing_loc: (5...6) = "\""
        └── @ ArrayNode (location: (8...16))
            ├── elements: (length: 1)
            │   └── @ InterpolatedStringNode (location: (11...15))
            │       ├── opening_loc: ∅
            │       ├── parts: (length: 1)
            │       │   └── @ EmbeddedStatementsNode (location: (11...15))
            │       │       ├── opening_loc: (11...13) = "\#{"
            │       │       ├── statements:
            │       │       │   @ StatementsNode (location: (13...14))
            │       │       │   └── body: (length: 1)
            │       │       │       └── @ IntegerNode (location: (13...14))
            │       │       │           └── flags: decimal
            │       │       └── closing_loc: (14...15) = "}"
            │       └── closing_loc: ∅
            ├── opening_loc: (8...11) = "%W\""
            └── closing_loc: (15...16) = "\""
