@ ProgramNode (location: (0...15))
├── locals: [:s, :x, :y, :z]
└── statements:
    @ StatementsNode (location: (0...15))
    └── body: (length: 1)
        └── @ MultiWriteNode (location: (0...15))
            ├── targets: (length: 4)
            │   ├── @ MultiTargetNode (location: (0...2))
            │   │   ├── targets: (length: 1)
            │   │   │   └── @ SplatNode (location: (0...2))
            │   │   │       ├── operator_loc: (0...1) = "*"
            │   │   │       └── expression:
            │   │   │           @ LocalVariableTargetNode (location: (1...2))
            │   │   │           ├── name: :s
            │   │   │           └── depth: 0
            │   │   ├── lparen_loc: ∅
            │   │   └── rparen_loc: ∅
            │   ├── @ LocalVariableTargetNode (location: (4...5))
            │   │   ├── name: :x
            │   │   └── depth: 0
            │   ├── @ LocalVariableTargetNode (location: (7...8))
            │   │   ├── name: :y
            │   │   └── depth: 0
            │   └── @ LocalVariableTargetNode (location: (10...11))
            │       ├── name: :z
            │       └── depth: 0
            ├── lparen_loc: ∅
            ├── rparen_loc: ∅
            ├── operator_loc: (12...13) = "="
            └── value:
                @ CallNode (location: (14...15))
                ├── receiver: ∅
                ├── call_operator_loc: ∅
                ├── message_loc: (14...15) = "f"
                ├── opening_loc: ∅
                ├── arguments: ∅
                ├── closing_loc: ∅
                ├── block: ∅
                ├── flags: variable_call
                └── name: "f"
