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@ ProgramNode (location: (1,0)-(2,10))
├── locals: []
└── statements:
@ StatementsNode (location: (1,0)-(2,10))
└── body: (length: 2)
├── @ CallNode (location: (1,0)-(1,5))
│ ├── flags: ignore_visibility
│ ├── receiver: ∅
│ ├── call_operator_loc: ∅
│ ├── name: :a
│ ├── message_loc: (1,0)-(1,1) = "a"
│ ├── opening_loc: ∅
│ ├── arguments:
│ │ @ ArgumentsNode (location: (1,2)-(1,5))
│ │ ├── flags: ∅
│ │ └── arguments: (length: 1)
│ │ └── @ ParenthesesNode (location: (1,2)-(1,5))
│ │ ├── body:
│ │ │ @ StatementsNode (location: (1,3)-(1,4))
│ │ │ └── body: (length: 1)
│ │ │ └── @ CallNode (location: (1,3)-(1,4))
│ │ │ ├── flags: variable_call, ignore_visibility
│ │ │ ├── receiver: ∅
│ │ │ ├── call_operator_loc: ∅
│ │ │ ├── name: :b
│ │ │ ├── message_loc: (1,3)-(1,4) = "b"
│ │ │ ├── opening_loc: ∅
│ │ │ ├── arguments: ∅
│ │ │ ├── closing_loc: ∅
│ │ │ └── block: ∅
│ │ ├── opening_loc: (1,2)-(1,3) = "("
│ │ └── closing_loc: (1,4)-(1,5) = ")"
│ ├── closing_loc: ∅
│ └── block: ∅
└── @ CallNode (location: (2,0)-(2,10))
├── flags: ∅
├── receiver:
│ @ CallNode (location: (2,0)-(2,1))
│ ├── flags: variable_call, ignore_visibility
│ ├── receiver: ∅
│ ├── call_operator_loc: ∅
│ ├── name: :c
│ ├── message_loc: (2,0)-(2,1) = "c"
│ ├── opening_loc: ∅
│ ├── arguments: ∅
│ ├── closing_loc: ∅
│ └── block: ∅
├── call_operator_loc: (2,1)-(2,2) = "."
├── name: :d
├── message_loc: (2,2)-(2,3) = "d"
├── opening_loc: ∅
├── arguments: ∅
├── closing_loc: ∅
└── block:
@ BlockNode (location: (2,4)-(2,10))
├── locals: []
├── parameters: ∅
├── body: ∅
├── opening_loc: (2,4)-(2,6) = "do"
└── closing_loc: (2,7)-(2,10) = "end"
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