@ ProgramNode (location: (0...31))
├── locals: []
└── statements:
    @ StatementsNode (location: (0...31))
    └── body: (length: 3)
        ├── @ ArrayNode (location: (0...6))
        │   ├── elements: (length: 1)
        │   │   └── @ SplatNode (location: (1...5))
        │   │       ├── operator_loc: (1...2) = "*"
        │   │       └── expression:
        │   │           @ CallNode (location: (2...5))
        │   │           ├── receiver: ∅
        │   │           ├── call_operator_loc: ∅
        │   │           ├── message_loc: (2...5) = "foo"
        │   │           ├── opening_loc: ∅
        │   │           ├── arguments: ∅
        │   │           ├── closing_loc: ∅
        │   │           ├── block: ∅
        │   │           ├── flags: variable_call
        │   │           └── name: "foo"
        │   ├── opening_loc: (0...1) = "["
        │   └── closing_loc: (5...6) = "]"
        ├── @ ArrayNode (location: (8...20))
        │   ├── elements: (length: 3)
        │   │   ├── @ IntegerNode (location: (9...10))
        │   │   │   └── flags: decimal
        │   │   ├── @ SplatNode (location: (12...16))
        │   │   │   ├── operator_loc: (12...13) = "*"
        │   │   │   └── expression:
        │   │   │       @ CallNode (location: (13...16))
        │   │   │       ├── receiver: ∅
        │   │   │       ├── call_operator_loc: ∅
        │   │   │       ├── message_loc: (13...16) = "foo"
        │   │   │       ├── opening_loc: ∅
        │   │   │       ├── arguments: ∅
        │   │   │       ├── closing_loc: ∅
        │   │   │       ├── block: ∅
        │   │   │       ├── flags: variable_call
        │   │   │       └── name: "foo"
        │   │   └── @ IntegerNode (location: (18...19))
        │   │       └── flags: decimal
        │   ├── opening_loc: (8...9) = "["
        │   └── closing_loc: (19...20) = "]"
        └── @ ArrayNode (location: (22...31))
            ├── elements: (length: 2)
            │   ├── @ IntegerNode (location: (23...24))
            │   │   └── flags: decimal
            │   └── @ SplatNode (location: (26...30))
            │       ├── operator_loc: (26...27) = "*"
            │       └── expression:
            │           @ CallNode (location: (27...30))
            │           ├── receiver: ∅
            │           ├── call_operator_loc: ∅
            │           ├── message_loc: (27...30) = "foo"
            │           ├── opening_loc: ∅
            │           ├── arguments: ∅
            │           ├── closing_loc: ∅
            │           ├── block: ∅
            │           ├── flags: variable_call
            │           └── name: "foo"
            ├── opening_loc: (22...23) = "["
            └── closing_loc: (30...31) = "]"
