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@ ProgramNode (location: (1,0)-(1,18))
├── locals: [:a]
└── statements:
@ StatementsNode (location: (1,0)-(1,18))
└── body: (length: 1)
└── @ LocalVariableOrWriteNode (location: (1,0)-(1,18))
├── name_loc: (1,0)-(1,1) = "a"
├── operator_loc: (1,2)-(1,5) = "||="
├── value:
│ @ RescueModifierNode (location: (1,6)-(1,18))
│ ├── expression:
│ │ @ CallNode (location: (1,6)-(1,7))
│ │ ├── flags: variable_call, ignore_visibility
│ │ ├── receiver: ∅
│ │ ├── call_operator_loc: ∅
│ │ ├── name: :b
│ │ ├── message_loc: (1,6)-(1,7) = "b"
│ │ ├── opening_loc: ∅
│ │ ├── arguments: ∅
│ │ ├── closing_loc: ∅
│ │ └── block: ∅
│ ├── keyword_loc: (1,8)-(1,14) = "rescue"
│ └── rescue_expression:
│ @ NilNode (location: (1,15)-(1,18))
├── name: :a
└── depth: 0
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