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@ ProgramNode (location: (1,0)-(12,11))
├── locals: []
└── statements:
@ StatementsNode (location: (1,0)-(12,11))
└── body: (length: 5)
├── @ NilNode (location: (1,0)-(1,3))
├── @ ParenthesesNode (location: (3,0)-(3,2))
│ ├── body: ∅
│ ├── opening_loc: (3,0)-(3,1) = "("
│ └── closing_loc: (3,1)-(3,2) = ")"
├── @ ParenthesesNode (location: (5,0)-(8,1))
│ ├── body: ∅
│ ├── opening_loc: (5,0)-(5,1) = "("
│ └── closing_loc: (8,0)-(8,1) = ")"
├── @ PostExecutionNode (location: (10,0)-(10,9))
│ ├── statements:
│ │ @ StatementsNode (location: (10,6)-(10,7))
│ │ └── body: (length: 1)
│ │ └── @ IntegerNode (location: (10,6)-(10,7))
│ │ ├── flags: decimal
│ │ └── value: 1
│ ├── keyword_loc: (10,0)-(10,3) = "END"
│ ├── opening_loc: (10,4)-(10,5) = "{"
│ └── closing_loc: (10,8)-(10,9) = "}"
└── @ PreExecutionNode (location: (12,0)-(12,11))
├── statements:
│ @ StatementsNode (location: (12,8)-(12,9))
│ └── body: (length: 1)
│ └── @ IntegerNode (location: (12,8)-(12,9))
│ ├── flags: decimal
│ └── value: 1
├── keyword_loc: (12,0)-(12,5) = "BEGIN"
├── opening_loc: (12,6)-(12,7) = "{"
└── closing_loc: (12,10)-(12,11) = "}"
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