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@ ProgramNode (location: (1,0)-(4,3))
├── locals: []
└── statements:
@ StatementsNode (location: (1,0)-(4,3))
└── body: (length: 1)
└── @ CaseMatchNode (location: (1,0)-(4,3))
├── predicate:
│ @ CallNode (location: (1,5)-(1,8))
│ ├── flags: variable_call, ignore_visibility
│ ├── receiver: ∅
│ ├── call_operator_loc: ∅
│ ├── name: :obj
│ ├── message_loc: (1,5)-(1,8) = "obj"
│ ├── opening_loc: ∅
│ ├── arguments: ∅
│ ├── closing_loc: ∅
│ └── block: ∅
├── conditions: (length: 1)
│ └── @ InNode (location: (2,0)-(3,6))
│ ├── pattern:
│ │ @ ArrayPatternNode (location: (2,3)-(2,11))
│ │ ├── constant:
│ │ │ @ ConstantReadNode (location: (2,3)-(2,9))
│ │ │ └── name: :Object
│ │ ├── requireds: (length: 0)
│ │ ├── rest: ∅
│ │ ├── posts: (length: 0)
│ │ ├── opening_loc: (2,9)-(2,10) = "["
│ │ └── closing_loc: (2,10)-(2,11) = "]"
│ ├── statements:
│ │ @ StatementsNode (location: (3,2)-(3,6))
│ │ └── body: (length: 1)
│ │ └── @ TrueNode (location: (3,2)-(3,6))
│ ├── in_loc: (2,0)-(2,2) = "in"
│ └── then_loc: ∅
├── consequent: ∅
├── case_keyword_loc: (1,0)-(1,4) = "case"
└── end_keyword_loc: (4,0)-(4,3) = "end"
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