@ ProgramNode (location: (0...32))
├── locals: []
└── statements:
    @ StatementsNode (location: (0...32))
    └── body: (length: 3)
        ├── @ CallNode (location: (0...10))
        │   ├── receiver:
        │   │   @ FloatNode (location: (0...4))
        │   ├── call_operator_loc: ∅
        │   ├── message_loc: (5...7) = "**"
        │   ├── opening_loc: ∅
        │   ├── arguments:
        │   │   @ ArgumentsNode (location: (8...10))
        │   │   └── arguments: (length: 1)
        │   │       └── @ IntegerNode (location: (8...10))
        │   │           └── flags: decimal
        │   ├── closing_loc: ∅
        │   ├── block: ∅
        │   ├── flags: ∅
        │   └── name: "**"
        ├── @ CallNode (location: (12...20))
        │   ├── receiver:
        │   │   @ CallNode (location: (13...20))
        │   │   ├── receiver:
        │   │   │   @ IntegerNode (location: (13...14))
        │   │   │   └── flags: decimal
        │   │   ├── call_operator_loc: ∅
        │   │   ├── message_loc: (15...17) = "**"
        │   │   ├── opening_loc: ∅
        │   │   ├── arguments:
        │   │   │   @ ArgumentsNode (location: (18...20))
        │   │   │   └── arguments: (length: 1)
        │   │   │       └── @ IntegerNode (location: (18...20))
        │   │   │           └── flags: decimal
        │   │   ├── closing_loc: ∅
        │   │   ├── block: ∅
        │   │   ├── flags: ∅
        │   │   └── name: "**"
        │   ├── call_operator_loc: ∅
        │   ├── message_loc: (12...13) = "-"
        │   ├── opening_loc: ∅
        │   ├── arguments: ∅
        │   ├── closing_loc: ∅
        │   ├── block: ∅
        │   ├── flags: ∅
        │   └── name: "-@"
        └── @ CallNode (location: (22...32))
            ├── receiver:
            │   @ CallNode (location: (23...32))
            │   ├── receiver:
            │   │   @ FloatNode (location: (23...26))
            │   ├── call_operator_loc: ∅
            │   ├── message_loc: (27...29) = "**"
            │   ├── opening_loc: ∅
            │   ├── arguments:
            │   │   @ ArgumentsNode (location: (30...32))
            │   │   └── arguments: (length: 1)
            │   │       └── @ IntegerNode (location: (30...32))
            │   │           └── flags: decimal
            │   ├── closing_loc: ∅
            │   ├── block: ∅
            │   ├── flags: ∅
            │   └── name: "**"
            ├── call_operator_loc: ∅
            ├── message_loc: (22...23) = "-"
            ├── opening_loc: ∅
            ├── arguments: ∅
            ├── closing_loc: ∅
            ├── block: ∅
            ├── flags: ∅
            └── name: "-@"
